refactor

.gitignore

@@ -7,6 +7,10 @@ node_modules/
 # Build output (if using a bundler or React later)
 dist/
 build/
+playwright-report/
+test-results/
+.npm-cache/
+.playwright-browsers/
 
 # Logs
 npm-debug.log*

.vscode-extensions/extensions.json

@@ -0,0 +1 @@
+[]

.vscode-user/logs/20260219T013031/cli.log

@@ -0,0 +1,12 @@
+2026-02-19 01:30:31.762 [error] Error: Unable to create or open registry key
+    at Object.setDeviceId (C:\Users\Nico\AppData\Local\Programs\Microsoft VS Code\591199df40\resources\app\node_modules\@vscode\deviceid\dist\storage.js:82:25)
+    at Module.getDeviceId (C:\Users\Nico\AppData\Local\Programs\Microsoft VS Code\591199df40\resources\app\node_modules\@vscode\deviceid\dist\devdeviceid.js:46:23)
+    at async U9 (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:11451)
+    at async F9 (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:11886)
+    at async e7.f (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:50696)
+    at async e7.run (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:49285)
+    at async Module.t7 (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:53186)
+    at async kn (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/cli.js:29:16018)
+2026-02-19 01:30:31.767 [info] CLI main {"_":[],"diff":false,"merge":false,"add":false,"remove":false,"goto":false,"new-window":false,"reuse-window":false,"wait":false,"user-data-dir":".vscode-user","help":false,"extensions-dir":".vscode-extensions","list-extensions":true,"show-versions":false,"pre-release":false,"update-extensions":false,"version":false,"verbose":false,"status":false,"prof-startup":false,"no-cached-data":false,"prof-v8-extensions":false,"disable-extensions":false,"disable-lcd-text":false,"disable-gpu":false,"disable-chromium-sandbox":false,"sandbox":false,"telemetry":false,"debugRenderer":false,"enable-smoke-test-driver":false,"logExtensionHostCommunication":false,"skip-release-notes":false,"skip-welcome":false,"disable-telemetry":false,"disable-updates":false,"transient":false,"use-inmemory-secretstorage":false,"disable-workspace-trust":false,"disable-crash-reporter":false,"skip-add-to-recently-opened":false,"open-url":false,"file-write":false,"file-chmod":false,"force":false,"do-not-sync":false,"do-not-include-pack-dependencies":false,"trace":false,"trace-memory-infra":false,"preserve-env":false,"force-user-env":false,"force-disable-user-env":false,"open-devtools":false,"disable-gpu-sandbox":false,"__enable-file-policy":false,"enable-coi":false,"enable-rdp-display-tracking":false,"disable-layout-restore":false,"disable-experiments":false,"no-proxy-server":false,"no-sandbox":false,"nolazy":false,"force-renderer-accessibility":false,"ignore-certificate-errors":false,"allow-insecure-localhost":false,"disable-dev-shm-usage":false,"profile-temp":false,"logsPath":"C:\\Users\\Nico\\Desktop\\Projects\\Costco-Grocery-List\\.vscode-user\\logs\\20260219T013031"}
+2026-02-19 01:30:31.783 [info] Started initializing default profile extensions in extensions installation folder. file:///c%3A/Users/Nico/Desktop/Projects/Costco-Grocery-List/.vscode-extensions
+2026-02-19 01:30:31.817 [info] Completed initializing default profile extensions in extensions installation folder. file:///c%3A/Users/Nico/Desktop/Projects/Costco-Grocery-List/.vscode-extensions

.vscode-user/logs/20260219T013038/cli.log

@@ -0,0 +1,14 @@
+2026-02-19 01:30:39.254 [error] Error: Unable to create or open registry key
+    at Object.setDeviceId (C:\Users\Nico\AppData\Local\Programs\Microsoft VS Code\591199df40\resources\app\node_modules\@vscode\deviceid\dist\storage.js:82:25)
+    at Module.getDeviceId (C:\Users\Nico\AppData\Local\Programs\Microsoft VS Code\591199df40\resources\app\node_modules\@vscode\deviceid\dist\devdeviceid.js:46:23)
+    at async U9 (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:11451)
+    at async F9 (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:11886)
+    at async e7.f (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:50696)
+    at async e7.run (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:49285)
+    at async Module.t7 (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/vs/code/node/cliProcessMain.js:85:53186)
+    at async kn (file:///C:/Users/Nico/AppData/Local/Programs/Microsoft%20VS%20Code/591199df40/resources/app/out/cli.js:29:16018)
+2026-02-19 01:30:39.259 [info] CLI main {"_":[],"diff":false,"merge":false,"add":false,"remove":false,"goto":false,"new-window":false,"reuse-window":false,"wait":false,"user-data-dir":"C:\\Users\\Nico\\Desktop\\Projects\\Costco-Grocery-List\\.vscode-user","help":false,"extensions-dir":"C:\\Users\\Nico\\Desktop\\Projects\\Costco-Grocery-List\\.vscode-extensions","list-extensions":false,"show-versions":false,"install-extension":["ritwickdey.LiveServer"],"pre-release":false,"update-extensions":false,"version":false,"verbose":false,"status":false,"prof-startup":false,"no-cached-data":false,"prof-v8-extensions":false,"disable-extensions":false,"disable-lcd-text":false,"disable-gpu":false,"disable-chromium-sandbox":false,"sandbox":false,"telemetry":false,"debugRenderer":false,"enable-smoke-test-driver":false,"logExtensionHostCommunication":false,"skip-release-notes":false,"skip-welcome":false,"disable-telemetry":false,"disable-updates":false,"transient":false,"use-inmemory-secretstorage":false,"disable-workspace-trust":false,"disable-crash-reporter":false,"skip-add-to-recently-opened":false,"open-url":false,"file-write":false,"file-chmod":false,"force":false,"do-not-sync":false,"do-not-include-pack-dependencies":false,"trace":false,"trace-memory-infra":false,"preserve-env":false,"force-user-env":false,"force-disable-user-env":false,"open-devtools":false,"disable-gpu-sandbox":false,"__enable-file-policy":false,"enable-coi":false,"enable-rdp-display-tracking":false,"disable-layout-restore":false,"disable-experiments":false,"no-proxy-server":false,"no-sandbox":false,"nolazy":false,"force-renderer-accessibility":false,"ignore-certificate-errors":false,"allow-insecure-localhost":false,"disable-dev-shm-usage":false,"profile-temp":false,"logsPath":"C:\\Users\\Nico\\Desktop\\Projects\\Costco-Grocery-List\\.vscode-user\\logs\\20260219T013038"}
+2026-02-19 01:30:40.046 [info] Getting Manifest... ritwickdey.liveserver
+2026-02-19 01:30:40.071 [info] Installing extension: ritwickdey.liveserver {"isMachineScoped":false,"installPreReleaseVersion":false,"donotIncludePackAndDependencies":false,"profileLocation":{"$mid":1,"external":"vscode-userdata:/c%3A/Users/Nico/Desktop/Projects/Costco-Grocery-List/.vscode-extensions/extensions.json","path":"/C:/Users/Nico/Desktop/Projects/Costco-Grocery-List/.vscode-extensions/extensions.json","scheme":"vscode-userdata"},"isBuiltin":false,"installGivenVersion":false,"isApplicationScoped":false,"productVersion":{"version":"1.109.2","date":"2026-02-10T20:18:23.520Z"}}
+2026-02-19 01:30:40.581 [info] Extension signature verification result for ritwickdey.liveserver: UnknownError. Executed: false. Duration: 5ms.
+2026-02-19 01:30:40.599 [error] Error while installing the extension ritwickdey.liveserver Signature verification failed with 'UnknownError' error. vscode-userdata:/c%3A/Users/Nico/Desktop/Projects/Costco-Grocery-List/.vscode-extensions/extensions.json

.vscode-user/machineid

@@ -0,0 +1 @@
+490a70bb-d2b1-490e-9046-37c8a08b0270

AGENTS.md

@@ -21,6 +21,8 @@
 - Receipt images stored in `receipts` (`bytea`).
 - Entries list endpoints must NEVER return receipt bytes.
 - API responses must include `request_id`; audit logs must include `request_id`.
+- Frontend actions that manipulate database state must show a toast/bubble notification with basic outcome info (action + target + success/failure).
+- Progress-type notifications must reuse the existing upload toaster pattern (`UploadQueueContext` + `UploadToaster`).
 
 ## Architecture boundaries (follow existing patterns; do not invent)
 1) API routes: `app/api/**/route.ts`

PROJECT_INSTRUCTIONS.md

@@ -154,7 +154,8 @@ For `app/api/**/[param]/route.ts`:
 - Mouse: hover affordance on interactive rows/cards.
 - Tap targets remain >= 40px on mobile.
 - Modal overlays must close on outside click/tap.
-- Use bubble notifications for main actions (create/update/delete/join).
+- For every frontend action that manipulates database state, show a toast/bubble notification with basic outcome details (action + target + success/failure).
+- Progress-type notifications must reuse the existing upload toaster pattern (`UploadQueueContext` + `UploadToaster`) for consistency.
 - Add Playwright UI tests for new UI features and critical flows.
 
 ---

backend/Dockerfile

@@ -2,6 +2,8 @@ FROM node:20-alpine
 
 WORKDIR /app
 
+RUN apk add --no-cache postgresql-client
+
 COPY package*.json ./
 RUN npm install
 

backend/app.js

@@ -63,6 +63,9 @@ app.use("/households", householdsRoutes);
 const storesRoutes = require("./routes/stores.routes");
 app.use("/stores", storesRoutes);
 
+const groupInvitesRoutes = require("./routes/group-invites.routes");
+app.use("/api", groupInvitesRoutes);
+
 app.use((err, req, res, next) => {
   if (res.headersSent) {
     return next(err);

backend/controllers/group-invites.controller.js

@@ -0,0 +1,216 @@
+const invitesService = require("../services/group-invites.service");
+const { sendError } = require("../utils/http");
+const { logError } = require("../utils/logger");
+const { inviteCodeLast4 } = require("../utils/redaction");
+
+function getClientIp(req) {
+  const forwardedFor = req.headers["x-forwarded-for"];
+  if (typeof forwardedFor === "string" && forwardedFor.trim()) {
+    return forwardedFor.split(",")[0].trim();
+  }
+  return req.ip || req.socket?.remoteAddress || null;
+}
+
+function parseRequestedGroupId(req) {
+  const headerGroupId = req.headers["x-group-id"] || req.headers["x-household-id"];
+  if (headerGroupId) {
+    const raw = Array.isArray(headerGroupId) ? headerGroupId[0] : headerGroupId;
+    return raw;
+  }
+  if (req.query?.groupId !== undefined) {
+    return req.query.groupId;
+  }
+  if (req.body?.groupId !== undefined) {
+    return req.body.groupId;
+  }
+  return undefined;
+}
+
+function clampTtlDays(value) {
+  const parsed = Number.parseInt(value, 10);
+  if (!Number.isInteger(parsed)) return 1;
+  return Math.max(1, Math.min(7, parsed));
+}
+
+function mapServiceError(req, res, error, context, extraLog = {}) {
+  if (error instanceof invitesService.InviteServiceError) {
+    return sendError(res, error.statusCode, error.message, error.code);
+  }
+  logError(req, context, error, extraLog);
+  return sendError(res, 500, "Failed to process invite request");
+}
+
+exports.listInviteLinks = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    const links = await invitesService.listInviteLinks(req.user.id, groupId);
+    res.json({ links });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.listInviteLinks");
+  }
+};
+
+exports.createInviteLink = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    const ttlDays = clampTtlDays(req.body?.ttlDays);
+    const expiresAt = new Date(Date.now() + ttlDays * 24 * 60 * 60 * 1000);
+    const link = await invitesService.createInviteLink(
+      req.user.id,
+      groupId,
+      req.body?.policy,
+      Boolean(req.body?.singleUse),
+      expiresAt,
+      req.request_id,
+      getClientIp(req),
+      req.headers["user-agent"] || null
+    );
+    res.status(201).json({ link });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.createInviteLink");
+  }
+};
+
+exports.revokeInviteLink = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    await invitesService.revokeInviteLink(
+      req.user.id,
+      groupId,
+      req.body?.linkId,
+      req.request_id,
+      getClientIp(req),
+      req.headers["user-agent"] || null
+    );
+    res.json({ ok: true });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.revokeInviteLink");
+  }
+};
+
+exports.reviveInviteLink = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    const ttlDays = clampTtlDays(req.body?.ttlDays);
+    const expiresAt = new Date(Date.now() + ttlDays * 24 * 60 * 60 * 1000);
+    await invitesService.reviveInviteLink(
+      req.user.id,
+      groupId,
+      req.body?.linkId,
+      expiresAt,
+      req.request_id,
+      getClientIp(req),
+      req.headers["user-agent"] || null
+    );
+    res.json({ ok: true });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.reviveInviteLink");
+  }
+};
+
+exports.deleteInviteLink = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    await invitesService.deleteInviteLink(
+      req.user.id,
+      groupId,
+      req.body?.linkId,
+      req.request_id,
+      getClientIp(req),
+      req.headers["user-agent"] || null
+    );
+    res.json({ ok: true });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.deleteInviteLink");
+  }
+};
+
+exports.getJoinPolicy = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    const joinPolicy = await invitesService.getGroupJoinPolicy(req.user.id, groupId);
+    res.json({ joinPolicy });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.getJoinPolicy");
+  }
+};
+
+exports.setJoinPolicy = async (req, res) => {
+  try {
+    const requestedGroupId = parseRequestedGroupId(req);
+    const groupId = await invitesService.resolveManagedGroupId(
+      req.user.id,
+      requestedGroupId
+    );
+    await invitesService.setGroupJoinPolicy(
+      req.user.id,
+      groupId,
+      req.body?.joinPolicy,
+      req.request_id,
+      getClientIp(req),
+      req.headers["user-agent"] || null
+    );
+    res.json({ ok: true });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.setJoinPolicy");
+  }
+};
+
+exports.getInviteLinkSummary = async (req, res) => {
+  const token = req.params.token;
+  const inviteLast4 = inviteCodeLast4(token);
+  try {
+    const link = await invitesService.getInviteLinkSummaryByToken(
+      token,
+      req.user?.id || null
+    );
+    res.json({ link });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.getInviteLinkSummary", {
+      invite_last4: inviteLast4,
+    });
+  }
+};
+
+exports.acceptInviteLink = async (req, res) => {
+  const token = req.params.token;
+  const inviteLast4 = inviteCodeLast4(token);
+  try {
+    const result = await invitesService.acceptInviteLink(
+      req.user.id,
+      token,
+      req.request_id,
+      getClientIp(req),
+      req.headers["user-agent"] || null
+    );
+    res.json({ result });
+  } catch (error) {
+    return mapServiceError(req, res, error, "groupInvites.acceptInviteLink", {
+      invite_last4: inviteLast4,
+    });
+  }
+};

backend/controllers/households.controller.js

@@ -165,8 +165,8 @@ exports.updateMemberRole = async (req, res) => {
     const { userId } = req.params;
     const { role } = req.body;
 
-    if (!role || !['admin', 'user'].includes(role)) {
-      return sendError(res, 400, "Invalid role. Must be 'admin' or 'user'");
+    if (!role || !['admin', 'member'].includes(role)) {
+      return sendError(res, 400, "Invalid role. Must be 'admin' or 'member'");
     }
 
     // Can't change own role
@@ -174,6 +174,14 @@ exports.updateMemberRole = async (req, res) => {
       return sendError(res, 400, "Cannot change your own role");
     }
 
+    const targetRole = await householdModel.getUserRole(req.params.householdId, userId);
+    if (!targetRole) {
+      return sendError(res, 404, "Member not found");
+    }
+    if (targetRole === "owner") {
+      return sendError(res, 403, "Owner role cannot be changed");
+    }
+
     const updated = await householdModel.updateMemberRole(
       req.params.householdId,
       userId,
@@ -197,8 +205,13 @@ exports.removeMember = async (req, res) => {
     const targetUserId = parseInt(userId);
 
     // Allow users to remove themselves, or admins to remove others
-    if (targetUserId !== req.user.id && req.household.role !== 'admin') {
-      return sendError(res, 403, "Only admins can remove other members");
+    if (targetUserId !== req.user.id && !["owner", "admin"].includes(req.household.role)) {
+      return sendError(res, 403, "Only admins or owners can remove other members");
+    }
+
+    const targetRole = await householdModel.getUserRole(req.params.householdId, userId);
+    if (targetRole === "owner") {
+      return sendError(res, 403, "Owner cannot be removed");
     }
 
     await householdModel.removeMember(req.params.householdId, userId);

backend/controllers/lists.controller.v2.js

@@ -60,7 +60,12 @@ exports.addItem = async (req, res) => {
     }
 
     if (added_for_user_id !== undefined && added_for_user_id !== null && String(added_for_user_id).trim() !== "") {
-      const parsedUserId = Number.parseInt(String(added_for_user_id), 10);
+      const rawAddedForUserId = String(added_for_user_id).trim();
+      if (!/^\d+$/.test(rawAddedForUserId)) {
+        return sendError(res, 400, "Added-for user ID must be a positive integer");
+      }
+
+      const parsedUserId = Number.parseInt(rawAddedForUserId, 10);
 
       if (!Number.isInteger(parsedUserId) || parsedUserId <= 0) {
         return sendError(res, 400, "Added-for user ID must be a positive integer");

backend/middleware/household.js

@@ -54,8 +54,8 @@ exports.requireHouseholdRole = (...allowedRoles) => {
   };
 };
 
-// Middleware to require admin role in household
-exports.requireHouseholdAdmin = exports.requireHouseholdRole('admin');
+// Middleware to require admin/owner role in household
+exports.requireHouseholdAdmin = exports.requireHouseholdRole('owner', 'admin');
 
 // Middleware to check store access (household must have store)
 exports.storeAccess = async (req, res, next) => {

backend/middleware/optional-auth.js

@@ -0,0 +1,47 @@
+const jwt = require("jsonwebtoken");
+const Session = require("../models/session.model");
+const { parseCookieHeader } = require("../utils/cookies");
+const { cookieName } = require("../utils/session-cookie");
+const { logError } = require("../utils/logger");
+
+async function optionalAuth(req, res, next) {
+  const header = req.headers.authorization || "";
+  const token = header.startsWith("Bearer ") ? header.slice(7).trim() : null;
+
+  if (token) {
+    const jwtSecret = process.env.JWT_SECRET;
+    if (!jwtSecret) {
+      return next();
+    }
+
+    try {
+      const decoded = jwt.verify(token, jwtSecret);
+      req.user = decoded;
+      return next();
+    } catch (err) {
+      return next();
+    }
+  }
+
+  try {
+    const cookies = parseCookieHeader(req.headers.cookie);
+    const sid = cookies[cookieName()];
+    if (!sid) return next();
+
+    const session = await Session.getActiveSessionWithUser(sid);
+    if (!session) return next();
+
+    req.user = {
+      id: session.user_id,
+      role: session.role,
+      username: session.username,
+    };
+    req.session_id = session.id;
+  } catch (err) {
+    logError(req, "middleware.optionalAuth", err);
+  }
+
+  return next();
+}
+
+module.exports = optionalAuth;

backend/middleware/rate-limit.js

@@ -18,7 +18,7 @@ function getClientIp(req) {
   return req.ip || req.socket?.remoteAddress || "unknown";
 }
 
-function createRateLimit({ keyPrefix, windowMs, max, message }) {
+function createRateLimit({ keyPrefix, windowMs, max, message, keyFn }) {
   return (req, res, next) => {
     const now = Date.now();
 
@@ -26,7 +26,8 @@ function createRateLimit({ keyPrefix, windowMs, max, message }) {
       pruneExpired(now);
     }
 
-    const key = `${keyPrefix}:${getClientIp(req)}`;
+    const suffix = typeof keyFn === "function" ? keyFn(req) : getClientIp(req);
+    const key = `${keyPrefix}:${suffix || "unknown"}`;
     const existing = buckets.get(key);
     const bucket =
       !existing || existing.resetAt <= now

backend/migrations/stale-sql-report.json

@@ -0,0 +1,65 @@
+{
+  "generated_at": "2026-02-19T07:24:39.402Z",
+  "canonical_dir": "packages\\db\\migrations",
+  "legacy_dir": "backend\\migrations",
+  "stale_sql_files": [
+    {
+      "filename": "add_display_name_column.sql",
+      "status": "STALE_DUPLICATE_OF_CANONICAL",
+      "backend_sha256": "3df494bbbaf6cf3221e48dee763b66f7b4de0c4f5a43552e6f7350271e10a22f",
+      "canonical_sha256": "3df494bbbaf6cf3221e48dee763b66f7b4de0c4f5a43552e6f7350271e10a22f"
+    },
+    {
+      "filename": "add_image_columns.sql",
+      "status": "STALE_DUPLICATE_OF_CANONICAL",
+      "backend_sha256": "45e14112cc88661aea3c55c149bfbe08e692571851b8f9d5061624e9ec3c0d6a",
+      "canonical_sha256": "45e14112cc88661aea3c55c149bfbe08e692571851b8f9d5061624e9ec3c0d6a"
+    },
+    {
+      "filename": "add_modified_on_column.sql",
+      "status": "STALE_DUPLICATE_OF_CANONICAL",
+      "backend_sha256": "dfcaf14ade2241b240d5632e23e5b52b4361b4fc7fdfcaec950c33a9026b9f1b",
+      "canonical_sha256": "dfcaf14ade2241b240d5632e23e5b52b4361b4fc7fdfcaec950c33a9026b9f1b"
+    },
+    {
+      "filename": "add_notes_column.sql",
+      "status": "STALE_DUPLICATE_OF_CANONICAL",
+      "backend_sha256": "c2988c18d14adea5ab0693059b47b333b40be58223d9b607581f84853fcd1a1a",
+      "canonical_sha256": "c2988c18d14adea5ab0693059b47b333b40be58223d9b607581f84853fcd1a1a"
+    },
+    {
+      "filename": "create_item_classification_table.sql",
+      "status": "STALE_DUPLICATE_OF_CANONICAL",
+      "backend_sha256": "2191db3870457050fbdd90e1a02fa1cdde9e6c34746a0c818ac6232a55f7937a",
+      "canonical_sha256": "2191db3870457050fbdd90e1a02fa1cdde9e6c34746a0c818ac6232a55f7937a"
+    },
+    {
+      "filename": "multi_household_architecture.sql",
+      "status": "STALE_DUPLICATE_OF_CANONICAL",
+      "backend_sha256": "5cb427f188f8db8bf9b982e8b5ea9e44df67bc5e47f9aa2cf5e371df2d00610e",
+      "canonical_sha256": "5cb427f188f8db8bf9b982e8b5ea9e44df67bc5e47f9aa2cf5e371df2d00610e"
+    }
+  ],
+  "canonical_only_sql_files": [
+    {
+      "filename": "create_sessions_table.sql",
+      "status": "CANONICAL_ONLY",
+      "canonical_sha256": "d46e5147eb113042e9c2856d17b38715e66a486ee4d7c6450c960145791bc030"
+    },
+    {
+      "filename": "zz_group_invites_and_join_policies.sql",
+      "status": "CANONICAL_ONLY",
+      "canonical_sha256": "de955333667326f8eaf224431ecb62a5d0bd354fa0ccce34af6e52374e55d6e3"
+    }
+  ],
+  "legacy_non_sql_files": [
+    "MIGRATION_GUIDE.md"
+  ],
+  "summary": {
+    "stale_total": 6,
+    "stale_only_in_backend_total": 0,
+    "stale_duplicate_total": 6,
+    "stale_diverged_total": 0,
+    "canonical_only_total": 2
+  }
+}

backend/models/household.model.js

@@ -54,7 +54,7 @@ exports.createHousehold = async (name, createdBy) => {
   // Add creator as admin
   await pool.query(
     `INSERT INTO household_members (household_id, user_id, role)
-     VALUES ($1, $2, 'admin')`,
+     VALUES ($1, $2, 'owner')`,
     [result.rows[0].id, createdBy]
   );
 
@@ -118,7 +118,7 @@ exports.joinHousehold = async (inviteCode, userId) => {
   // Add as user role
   await pool.query(
     `INSERT INTO household_members (household_id, user_id, role)
-     VALUES ($1, $2, 'user')`,
+     VALUES ($1, $2, 'member')`,
     [household.id, userId]
   );
 
@@ -140,8 +140,9 @@ exports.getHouseholdMembers = async (householdId) => {
     WHERE hm.household_id = $1
     ORDER BY 
       CASE hm.role 
-        WHEN 'admin' THEN 1 
-        WHEN 'user' THEN 2 
+        WHEN 'owner' THEN 1
+        WHEN 'admin' THEN 2 
+        WHEN 'member' THEN 3
       END,
       hm.joined_at ASC`,
     [householdId]

backend/routes/group-invites.routes.js

@@ -0,0 +1,72 @@
+const router = require("express").Router();
+const auth = require("../middleware/auth");
+const optionalAuth = require("../middleware/optional-auth");
+const { createRateLimit } = require("../middleware/rate-limit");
+const controller = require("../controllers/group-invites.controller");
+
+const inviteSummaryIpRateLimit = createRateLimit({
+  keyPrefix: "invite:summary:ip",
+  windowMs: 15 * 60 * 1000,
+  max: 120,
+  message: "Too many invite link summary requests. Please try again later.",
+});
+
+const inviteAcceptIpRateLimit = createRateLimit({
+  keyPrefix: "invite:accept:ip",
+  windowMs: 15 * 60 * 1000,
+  max: 60,
+  message: "Too many invite acceptance attempts. Please try again later.",
+});
+
+const inviteWriteUserRateLimit = createRateLimit({
+  keyPrefix: "invite:write:user",
+  windowMs: 15 * 60 * 1000,
+  max: 60,
+  message: "Too many write operations. Please try again later.",
+  keyFn: (req) => (req.user?.id ? `user:${req.user.id}` : "anon"),
+});
+
+router.get("/groups/invites", auth, controller.listInviteLinks);
+router.post("/groups/invites", auth, inviteWriteUserRateLimit, controller.createInviteLink);
+router.post(
+  "/groups/invites/revoke",
+  auth,
+  inviteWriteUserRateLimit,
+  controller.revokeInviteLink
+);
+router.post(
+  "/groups/invites/revive",
+  auth,
+  inviteWriteUserRateLimit,
+  controller.reviveInviteLink
+);
+router.post(
+  "/groups/invites/delete",
+  auth,
+  inviteWriteUserRateLimit,
+  controller.deleteInviteLink
+);
+
+router.get("/groups/join-policy", auth, controller.getJoinPolicy);
+router.post(
+  "/groups/join-policy",
+  auth,
+  inviteWriteUserRateLimit,
+  controller.setJoinPolicy
+);
+
+router.get(
+  "/invite-links/:token",
+  inviteSummaryIpRateLimit,
+  optionalAuth,
+  controller.getInviteLinkSummary
+);
+router.post(
+  "/invite-links/:token",
+  auth,
+  inviteAcceptIpRateLimit,
+  inviteWriteUserRateLimit,
+  controller.acceptInviteLink
+);
+
+module.exports = router;

backend/services/group-invites.service.js

@@ -0,0 +1,557 @@
+const crypto = require("crypto");
+const net = require("net");
+const invitesModel = require("../models/group-invites.model");
+const { inviteCodeLast4 } = require("../utils/redaction");
+
+const JOIN_POLICIES = Object.freeze({
+  NOT_ACCEPTING: "NOT_ACCEPTING",
+  AUTO_ACCEPT: "AUTO_ACCEPT",
+  APPROVAL_REQUIRED: "APPROVAL_REQUIRED",
+});
+
+const JOIN_RESULTS = Object.freeze({
+  JOINED: "JOINED",
+  PENDING: "PENDING",
+  ALREADY_MEMBER: "ALREADY_MEMBER",
+});
+
+class InviteServiceError extends Error {
+  constructor(code, message, statusCode = 400) {
+    super(message);
+    this.name = "InviteServiceError";
+    this.code = code;
+    this.statusCode = statusCode;
+  }
+}
+
+function normalizeIp(ip) {
+  if (!ip || typeof ip !== "string") return null;
+  const trimmed = ip.trim();
+  if (!trimmed) return null;
+  return net.isIP(trimmed) ? trimmed : null;
+}
+
+function ensureJoinPolicy(policy) {
+  if (Object.values(JOIN_POLICIES).includes(policy)) {
+    return policy;
+  }
+  throw new InviteServiceError(
+    "INVALID_JOIN_POLICY",
+    "Invalid join policy",
+    400
+  );
+}
+
+function ensurePositiveInteger(value, fieldName) {
+  const parsed = Number.parseInt(value, 10);
+  if (!Number.isInteger(parsed) || parsed <= 0) {
+    throw new InviteServiceError("INVALID_INPUT", `${fieldName} is required`, 400);
+  }
+  return parsed;
+}
+
+function ensureDate(value, fieldName) {
+  const date = value instanceof Date ? value : new Date(value);
+  if (Number.isNaN(date.getTime())) {
+    throw new InviteServiceError("INVALID_INPUT", `${fieldName} is invalid`, 400);
+  }
+  return date;
+}
+
+async function ensureGroupAndManagerRole(userId, groupId, client) {
+  const group = await invitesModel.getGroupById(groupId, client);
+  if (!group) {
+    throw new InviteServiceError("GROUP_NOT_FOUND", "Group not found", 404);
+  }
+
+  const actorRole = await invitesModel.getUserGroupRole(groupId, userId, client);
+  if (!["owner", "admin"].includes(actorRole)) {
+    throw new InviteServiceError(
+      "FORBIDDEN",
+      "Admin or owner role required",
+      403
+    );
+  }
+
+  return { actorRole, group };
+}
+
+async function resolveManagedGroupId(userId, requestedGroupId) {
+  if (requestedGroupId !== undefined && requestedGroupId !== null) {
+    return ensurePositiveInteger(requestedGroupId, "groupId");
+  }
+
+  const manageableGroups = await invitesModel.getManageableGroupsForUser(userId);
+  if (manageableGroups.length === 0) {
+    throw new InviteServiceError(
+      "FORBIDDEN",
+      "Admin or owner role required",
+      403
+    );
+  }
+
+  if (manageableGroups.length > 1) {
+    throw new InviteServiceError(
+      "GROUP_ID_REQUIRED",
+      "Group ID is required when you manage multiple groups",
+      400
+    );
+  }
+
+  return manageableGroups[0].group_id;
+}
+
+async function createInviteLink(
+  userId,
+  groupId,
+  policy,
+  singleUse,
+  expiresAt,
+  requestId,
+  ip,
+  userAgent
+) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  const resolvedPolicy = ensureJoinPolicy(policy);
+  const resolvedExpiresAt = ensureDate(expiresAt, "expiresAt");
+
+  return invitesModel.withTransaction(async (client) => {
+    const { actorRole } = await ensureGroupAndManagerRole(
+      userId,
+      resolvedGroupId,
+      client
+    );
+
+    let link = null;
+    for (let attempt = 0; attempt < 5; attempt += 1) {
+      const token = crypto.randomBytes(16).toString("hex");
+      try {
+        link = await invitesModel.createInviteLink(
+          {
+            groupId: resolvedGroupId,
+            createdBy: userId,
+            token,
+            policy: resolvedPolicy,
+            singleUse: Boolean(singleUse),
+            expiresAt: resolvedExpiresAt,
+          },
+          client
+        );
+        break;
+      } catch (error) {
+        if (error.code !== "23505") {
+          throw error;
+        }
+      }
+    }
+
+    if (!link) {
+      throw new InviteServiceError(
+        "INVITE_CREATE_FAILED",
+        "Unable to create invite link",
+        500
+      );
+    }
+
+    await invitesModel.createGroupAuditLog(
+      {
+        groupId: resolvedGroupId,
+        actorUserId: userId,
+        actorRole,
+        eventType: "GROUP_INVITE_CREATED",
+        requestId,
+        ip: normalizeIp(ip),
+        userAgent: userAgent || null,
+        metadata: {
+          inviteCodeLast4: inviteCodeLast4(link.token),
+        },
+      },
+      client
+    );
+
+    return link;
+  });
+}
+
+async function listInviteLinks(userId, groupId) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  await ensureGroupAndManagerRole(userId, resolvedGroupId);
+  return invitesModel.listInviteLinks(resolvedGroupId);
+}
+
+async function revokeInviteLink(
+  userId,
+  groupId,
+  linkId,
+  requestId,
+  ip,
+  userAgent
+) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  const resolvedLinkId = ensurePositiveInteger(linkId, "linkId");
+
+  return invitesModel.withTransaction(async (client) => {
+    const { actorRole } = await ensureGroupAndManagerRole(
+      userId,
+      resolvedGroupId,
+      client
+    );
+    const link = await invitesModel.revokeInviteLink(
+      resolvedGroupId,
+      resolvedLinkId,
+      client
+    );
+    if (!link) {
+      throw new InviteServiceError("INVITE_NOT_FOUND", "Invite link not found", 404);
+    }
+
+    await invitesModel.createGroupAuditLog(
+      {
+        groupId: resolvedGroupId,
+        actorUserId: userId,
+        actorRole,
+        eventType: "GROUP_INVITE_REVOKED",
+        requestId,
+        ip: normalizeIp(ip),
+        userAgent: userAgent || null,
+        metadata: {
+          inviteCodeLast4: inviteCodeLast4(link.token),
+        },
+      },
+      client
+    );
+  });
+}
+
+async function reviveInviteLink(
+  userId,
+  groupId,
+  linkId,
+  expiresAt,
+  requestId,
+  ip,
+  userAgent
+) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  const resolvedLinkId = ensurePositiveInteger(linkId, "linkId");
+  const resolvedExpiresAt = ensureDate(expiresAt, "expiresAt");
+
+  return invitesModel.withTransaction(async (client) => {
+    const { actorRole } = await ensureGroupAndManagerRole(
+      userId,
+      resolvedGroupId,
+      client
+    );
+    const link = await invitesModel.reviveInviteLink(
+      resolvedGroupId,
+      resolvedLinkId,
+      resolvedExpiresAt,
+      client
+    );
+    if (!link) {
+      throw new InviteServiceError("INVITE_NOT_FOUND", "Invite link not found", 404);
+    }
+
+    await invitesModel.createGroupAuditLog(
+      {
+        groupId: resolvedGroupId,
+        actorUserId: userId,
+        actorRole,
+        eventType: "GROUP_INVITE_REVIVED",
+        requestId,
+        ip: normalizeIp(ip),
+        userAgent: userAgent || null,
+        metadata: {
+          inviteCodeLast4: inviteCodeLast4(link.token),
+        },
+      },
+      client
+    );
+  });
+}
+
+async function deleteInviteLink(
+  userId,
+  groupId,
+  linkId,
+  requestId,
+  ip,
+  userAgent
+) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  const resolvedLinkId = ensurePositiveInteger(linkId, "linkId");
+
+  return invitesModel.withTransaction(async (client) => {
+    const { actorRole } = await ensureGroupAndManagerRole(
+      userId,
+      resolvedGroupId,
+      client
+    );
+    const link = await invitesModel.deleteInviteLink(
+      resolvedGroupId,
+      resolvedLinkId,
+      client
+    );
+    if (!link) {
+      throw new InviteServiceError("INVITE_NOT_FOUND", "Invite link not found", 404);
+    }
+
+    await invitesModel.createGroupAuditLog(
+      {
+        groupId: resolvedGroupId,
+        actorUserId: userId,
+        actorRole,
+        eventType: "GROUP_INVITE_DELETED",
+        requestId,
+        ip: normalizeIp(ip),
+        userAgent: userAgent || null,
+        metadata: {
+          inviteCodeLast4: inviteCodeLast4(link.token),
+        },
+      },
+      client
+    );
+  });
+}
+
+function getInviteStatus(link) {
+  const now = Date.now();
+  if (link.single_use && link.used_at) return "USED";
+  if (link.revoked_at) return "REVOKED";
+  if (new Date(link.expires_at).getTime() <= now) return "EXPIRED";
+  return "ACTIVE";
+}
+
+async function getInviteLinkSummaryByToken(token, userId = null) {
+  if (!token || typeof token !== "string") {
+    throw new InviteServiceError("INVALID_INVITE_TOKEN", "Invite token is required", 400);
+  }
+
+  const summary = await invitesModel.getInviteLinkSummaryByToken(token.trim());
+  if (!summary) {
+    throw new InviteServiceError("INVITE_NOT_FOUND", "Invite link not found", 404);
+  }
+
+  let viewerStatus = null;
+  if (userId) {
+    const isMember = await invitesModel.isGroupMember(summary.group_id, userId);
+    if (isMember) {
+      viewerStatus = JOIN_RESULTS.ALREADY_MEMBER;
+    } else {
+      const pending = await invitesModel.getPendingJoinRequest(summary.group_id, userId);
+      if (pending) {
+        viewerStatus = JOIN_RESULTS.PENDING;
+      }
+    }
+  }
+
+  const activePolicy = summary.current_join_policy || summary.policy;
+  return {
+    id: summary.id,
+    group_id: summary.group_id,
+    group_name: summary.group_name,
+    token: summary.token,
+    policy: summary.policy,
+    current_join_policy: summary.current_join_policy || null,
+    active_policy: activePolicy,
+    single_use: summary.single_use,
+    expires_at: summary.expires_at,
+    used_at: summary.used_at,
+    revoked_at: summary.revoked_at,
+    created_at: summary.created_at,
+    status: getInviteStatus(summary),
+    ...(viewerStatus ? { viewerStatus } : {}),
+  };
+}
+
+async function acceptInviteLink(userId, token, requestId, ip, userAgent) {
+  if (!userId) {
+    throw new InviteServiceError("UNAUTHORIZED", "Authentication required", 401);
+  }
+  if (!token || typeof token !== "string") {
+    throw new InviteServiceError("INVALID_INVITE_TOKEN", "Invite token is required", 400);
+  }
+
+  return invitesModel.withTransaction(async (client) => {
+    const summary = await invitesModel.getInviteLinkSummaryByToken(
+      token.trim(),
+      client,
+      true
+    );
+    if (!summary) {
+      throw new InviteServiceError("INVITE_NOT_FOUND", "Invite link not found", 404);
+    }
+
+    const group = {
+      id: summary.group_id,
+      name: summary.group_name,
+    };
+
+    const memberExists = await invitesModel.isGroupMember(summary.group_id, userId, client);
+    if (memberExists) {
+      return { status: JOIN_RESULTS.ALREADY_MEMBER, group };
+    }
+
+    const pending = await invitesModel.getPendingJoinRequest(summary.group_id, userId, client);
+    if (pending) {
+      return { status: JOIN_RESULTS.PENDING, group };
+    }
+
+    const now = Date.now();
+    if (summary.revoked_at) {
+      throw new InviteServiceError(
+        "INVITE_REVOKED",
+        "This invite link has been revoked",
+        410
+      );
+    }
+    if (new Date(summary.expires_at).getTime() <= now) {
+      throw new InviteServiceError(
+        "INVITE_EXPIRED",
+        "This invite link has expired",
+        410
+      );
+    }
+    if (summary.single_use && summary.used_at) {
+      throw new InviteServiceError(
+        "INVITE_USED",
+        "This invite link has already been used",
+        410
+      );
+    }
+
+    const activePolicy =
+      summary.current_join_policy || summary.policy || JOIN_POLICIES.NOT_ACCEPTING;
+    if (activePolicy === JOIN_POLICIES.NOT_ACCEPTING) {
+      throw new InviteServiceError(
+        "JOIN_NOT_ACCEPTING",
+        "This group is not accepting new members",
+        403
+      );
+    }
+
+    const actorRole = (await invitesModel.getUserGroupRole(summary.group_id, userId, client)) || "guest";
+
+    if (activePolicy === JOIN_POLICIES.AUTO_ACCEPT) {
+      const inserted = await invitesModel.addGroupMember(
+        summary.group_id,
+        userId,
+        "member",
+        client
+      );
+      if (!inserted) {
+        return { status: JOIN_RESULTS.ALREADY_MEMBER, group };
+      }
+
+      if (summary.single_use) {
+        await invitesModel.consumeSingleUseInvite(summary.id, client);
+      }
+
+      await invitesModel.createGroupAuditLog(
+        {
+          groupId: summary.group_id,
+          actorUserId: userId,
+          actorRole,
+          eventType: "GROUP_INVITE_USED",
+          requestId,
+          ip: normalizeIp(ip),
+          userAgent: userAgent || null,
+          metadata: {
+            inviteCodeLast4: inviteCodeLast4(summary.token),
+          },
+        },
+        client
+      );
+
+      return { status: JOIN_RESULTS.JOINED, group };
+    }
+
+    if (activePolicy === JOIN_POLICIES.APPROVAL_REQUIRED) {
+      await invitesModel.createOrTouchPendingJoinRequest(summary.group_id, userId, client);
+
+      if (summary.single_use) {
+        await invitesModel.consumeSingleUseInvite(summary.id, client);
+      }
+
+      await invitesModel.createGroupAuditLog(
+        {
+          groupId: summary.group_id,
+          actorUserId: userId,
+          actorRole,
+          eventType: "GROUP_INVITE_REQUESTED",
+          requestId,
+          ip: normalizeIp(ip),
+          userAgent: userAgent || null,
+          metadata: {
+            inviteCodeLast4: inviteCodeLast4(summary.token),
+          },
+        },
+        client
+      );
+
+      return { status: JOIN_RESULTS.PENDING, group };
+    }
+
+    throw new InviteServiceError("INVALID_JOIN_POLICY", "Invalid join policy", 400);
+  });
+}
+
+async function getGroupJoinPolicy(userId, groupId) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  await ensureGroupAndManagerRole(userId, resolvedGroupId);
+  const settings = await invitesModel.getGroupSettings(resolvedGroupId);
+  return settings?.join_policy || JOIN_POLICIES.NOT_ACCEPTING;
+}
+
+async function setGroupJoinPolicy(
+  userId,
+  groupId,
+  joinPolicy,
+  requestId,
+  ip,
+  userAgent
+) {
+  const resolvedGroupId = ensurePositiveInteger(groupId, "groupId");
+  const resolvedJoinPolicy = ensureJoinPolicy(joinPolicy);
+
+  return invitesModel.withTransaction(async (client) => {
+    const { actorRole } = await ensureGroupAndManagerRole(
+      userId,
+      resolvedGroupId,
+      client
+    );
+    await invitesModel.upsertGroupSettings(resolvedGroupId, resolvedJoinPolicy, client);
+
+    await invitesModel.createGroupAuditLog(
+      {
+        groupId: resolvedGroupId,
+        actorUserId: userId,
+        actorRole,
+        eventType: "GROUP_JOIN_POLICY_UPDATED",
+        requestId,
+        ip: normalizeIp(ip),
+        userAgent: userAgent || null,
+        metadata: {
+          joinPolicy: resolvedJoinPolicy,
+        },
+      },
+      client
+    );
+  });
+}
+
+module.exports = {
+  InviteServiceError,
+  JOIN_POLICIES,
+  JOIN_RESULTS,
+  acceptInviteLink,
+  createInviteLink,
+  deleteInviteLink,
+  getGroupJoinPolicy,
+  getInviteLinkSummaryByToken,
+  listInviteLinks,
+  resolveManagedGroupId,
+  revokeInviteLink,
+  reviveInviteLink,
+  setGroupJoinPolicy,
+};

backend/tests/group-invites.routes.test.js

@@ -0,0 +1,74 @@
+jest.mock("../middleware/auth", () => (req, res, next) => {
+  req.user = { id: 42, role: "user" };
+  next();
+});
+
+jest.mock("../middleware/optional-auth", () => (req, res, next) => next());
+
+jest.mock("../services/group-invites.service", () => {
+  const actual = jest.requireActual("../services/group-invites.service");
+  return {
+    ...actual,
+    acceptInviteLink: jest.fn(),
+    createInviteLink: jest.fn(),
+    deleteInviteLink: jest.fn(),
+    getGroupJoinPolicy: jest.fn(),
+    getInviteLinkSummaryByToken: jest.fn(),
+    listInviteLinks: jest.fn(),
+    resolveManagedGroupId: jest.fn(),
+    revokeInviteLink: jest.fn(),
+    reviveInviteLink: jest.fn(),
+    setGroupJoinPolicy: jest.fn(),
+  };
+});
+
+const request = require("supertest");
+const invitesService = require("../services/group-invites.service");
+const app = require("../app");
+
+describe("group invites routes", () => {
+  beforeEach(() => {
+    invitesService.resolveManagedGroupId.mockResolvedValue(1);
+    invitesService.listInviteLinks.mockResolvedValue([]);
+    invitesService.createInviteLink.mockResolvedValue({
+      id: 1,
+      token: "abcd",
+      status: "ACTIVE",
+    });
+    invitesService.getInviteLinkSummaryByToken.mockResolvedValue({
+      id: 1,
+      token: "abcd",
+      group_name: "Test Group",
+      status: "ACTIVE",
+      active_policy: "AUTO_ACCEPT",
+    });
+  });
+
+  test("admin-only checks are enforced on invite management routes", async () => {
+    invitesService.createInviteLink.mockRejectedValue(
+      new invitesService.InviteServiceError(
+        "FORBIDDEN",
+        "Admin or owner role required",
+        403
+      )
+    );
+
+    const response = await request(app).post("/api/groups/invites").send({
+      policy: "AUTO_ACCEPT",
+      singleUse: false,
+      ttlDays: 3,
+    });
+
+    expect(response.status).toBe(403);
+    expect(response.body.error.code).toBe("FORBIDDEN");
+    expect(response.body.request_id).toBeTruthy();
+  });
+
+  test("request_id is present in invite responses", async () => {
+    const response = await request(app).get("/api/invite-links/abcd1234");
+
+    expect(response.status).toBe(200);
+    expect(response.body.request_id).toBeTruthy();
+    expect(response.body.link).toBeTruthy();
+  });
+});

backend/tests/group-invites.service.test.js

@@ -0,0 +1,189 @@
+jest.mock("../models/group-invites.model", () => ({
+  addGroupMember: jest.fn(),
+  createGroupAuditLog: jest.fn(),
+  createInviteLink: jest.fn(),
+  createOrTouchPendingJoinRequest: jest.fn(),
+  consumeSingleUseInvite: jest.fn(),
+  deleteInviteLink: jest.fn(),
+  getGroupById: jest.fn(),
+  getGroupSettings: jest.fn(),
+  getInviteLinkById: jest.fn(),
+  getInviteLinkSummaryByToken: jest.fn(),
+  getManageableGroupsForUser: jest.fn(),
+  getPendingJoinRequest: jest.fn(),
+  getUserGroupRole: jest.fn(),
+  isGroupMember: jest.fn(),
+  listInviteLinks: jest.fn(),
+  revokeInviteLink: jest.fn(),
+  reviveInviteLink: jest.fn(),
+  upsertGroupSettings: jest.fn(),
+  withTransaction: jest.fn(),
+}));
+
+const invitesModel = require("../models/group-invites.model");
+const invitesService = require("../services/group-invites.service");
+
+function inviteSummary(overrides = {}) {
+  return {
+    id: 30,
+    group_id: 10,
+    group_name: "Test Group",
+    token: "1234567890abcdef1234567890fedcba",
+    policy: "AUTO_ACCEPT",
+    current_join_policy: "AUTO_ACCEPT",
+    single_use: false,
+    expires_at: "2030-01-01T00:00:00.000Z",
+    used_at: null,
+    revoked_at: null,
+    ...overrides,
+  };
+}
+
+describe("group invites service", () => {
+  beforeEach(() => {
+    invitesModel.withTransaction.mockImplementation(async (handler) => handler({}));
+  });
+
+  test("create link success writes audit with request_id and token last4 only", async () => {
+    invitesModel.getGroupById.mockResolvedValue({ id: 1, name: "G1" });
+    invitesModel.getUserGroupRole.mockResolvedValue("admin");
+    invitesModel.createInviteLink.mockResolvedValue({
+      id: 55,
+      group_id: 1,
+      token: "1234567890abcdef1234567890fedcba",
+      policy: "AUTO_ACCEPT",
+      single_use: true,
+      expires_at: "2030-01-01T00:00:00.000Z",
+      created_at: "2026-01-01T00:00:00.000Z",
+    });
+
+    const link = await invitesService.createInviteLink(
+      7,
+      1,
+      "AUTO_ACCEPT",
+      true,
+      "2030-01-01T00:00:00.000Z",
+      "req-123",
+      "127.0.0.1",
+      "ua"
+    );
+
+    expect(link.id).toBe(55);
+    expect(invitesModel.createGroupAuditLog).toHaveBeenCalledTimes(1);
+    const auditPayload = invitesModel.createGroupAuditLog.mock.calls[0][0];
+    expect(auditPayload.requestId).toBe("req-123");
+    expect(auditPayload.metadata).toEqual({ inviteCodeLast4: "dcba" });
+  });
+
+  test("accept auto-accept adds membership", async () => {
+    invitesModel.getInviteLinkSummaryByToken.mockResolvedValue(inviteSummary());
+    invitesModel.isGroupMember.mockResolvedValue(false);
+    invitesModel.getPendingJoinRequest.mockResolvedValue(null);
+    invitesModel.getUserGroupRole.mockResolvedValue(null);
+    invitesModel.addGroupMember.mockResolvedValue(true);
+
+    const result = await invitesService.acceptInviteLink(
+      99,
+      "token-1",
+      "req-1",
+      "127.0.0.1",
+      "ua"
+    );
+
+    expect(result).toEqual({
+      status: "JOINED",
+      group: { id: 10, name: "Test Group" },
+    });
+    expect(invitesModel.addGroupMember).toHaveBeenCalled();
+    expect(invitesModel.createGroupAuditLog.mock.calls[0][0].eventType).toBe(
+      "GROUP_INVITE_USED"
+    );
+  });
+
+  test("accept manual policy creates pending request", async () => {
+    invitesModel.getInviteLinkSummaryByToken.mockResolvedValue(
+      inviteSummary({
+        current_join_policy: "APPROVAL_REQUIRED",
+        single_use: true,
+      })
+    );
+    invitesModel.isGroupMember.mockResolvedValue(false);
+    invitesModel.getPendingJoinRequest.mockResolvedValue(null);
+    invitesModel.getUserGroupRole.mockResolvedValue(null);
+    invitesModel.createOrTouchPendingJoinRequest.mockResolvedValue({
+      id: 1,
+      status: "PENDING",
+    });
+
+    const result = await invitesService.acceptInviteLink(
+      99,
+      "token-2",
+      "req-2",
+      "127.0.0.1",
+      "ua"
+    );
+
+    expect(result).toEqual({
+      status: "PENDING",
+      group: { id: 10, name: "Test Group" },
+    });
+    expect(invitesModel.createOrTouchPendingJoinRequest).toHaveBeenCalled();
+    expect(invitesModel.consumeSingleUseInvite).toHaveBeenCalledWith(30, {});
+    expect(invitesModel.createGroupAuditLog.mock.calls[0][0].eventType).toBe(
+      "GROUP_INVITE_REQUESTED"
+    );
+  });
+
+  test.each([
+    ["INVITE_EXPIRED", inviteSummary({ expires_at: "2020-01-01T00:00:00.000Z" })],
+    ["INVITE_REVOKED", inviteSummary({ revoked_at: "2026-01-01T00:00:00.000Z" })],
+    [
+      "INVITE_USED",
+      inviteSummary({ single_use: true, used_at: "2026-01-01T00:00:00.000Z" }),
+    ],
+  ])("rejects %s links", async (expectedCode, summary) => {
+    invitesModel.getInviteLinkSummaryByToken.mockResolvedValue(summary);
+    invitesModel.isGroupMember.mockResolvedValue(false);
+    invitesModel.getPendingJoinRequest.mockResolvedValue(null);
+
+    await expect(
+      invitesService.acceptInviteLink(99, "token-3", "req-3", "127.0.0.1", "ua")
+    ).rejects.toMatchObject({ code: expectedCode });
+  });
+
+  test("accept returns ALREADY_MEMBER before pending checks", async () => {
+    invitesModel.getInviteLinkSummaryByToken.mockResolvedValue(inviteSummary());
+    invitesModel.isGroupMember.mockResolvedValue(true);
+
+    const result = await invitesService.acceptInviteLink(
+      99,
+      "token-4",
+      "req-4",
+      "127.0.0.1",
+      "ua"
+    );
+
+    expect(result.status).toBe("ALREADY_MEMBER");
+    expect(invitesModel.getPendingJoinRequest).not.toHaveBeenCalled();
+  });
+
+  test("accept returns PENDING when request already exists", async () => {
+    invitesModel.getInviteLinkSummaryByToken.mockResolvedValue(inviteSummary());
+    invitesModel.isGroupMember.mockResolvedValue(false);
+    invitesModel.getPendingJoinRequest.mockResolvedValue({
+      id: 5,
+      status: "PENDING",
+    });
+
+    const result = await invitesService.acceptInviteLink(
+      99,
+      "token-5",
+      "req-5",
+      "127.0.0.1",
+      "ua"
+    );
+
+    expect(result.status).toBe("PENDING");
+    expect(invitesModel.addGroupMember).not.toHaveBeenCalled();
+  });
+});

backend/tests/lists.controller.v2.test.js

@@ -50,6 +50,40 @@ describe("lists.controller.v2 addItem", () => {
     expect(res.status).not.toHaveBeenCalledWith(400);
   });
 
+  test("records history using request user when added_for_user_id is not provided", async () => {
+    const req = {
+      params: { householdId: "1", storeId: "2" },
+      body: { item_name: "milk", quantity: "1" },
+      user: { id: 7 },
+      processedImage: null,
+    };
+    const res = createResponse();
+
+    await controller.addItem(req, res);
+
+    expect(householdModel.isHouseholdMember).not.toHaveBeenCalled();
+    expect(List.addOrUpdateItem).toHaveBeenCalled();
+    expect(List.addHistoryRecord).toHaveBeenCalledWith(42, "1", 7);
+    expect(res.status).not.toHaveBeenCalledWith(400);
+  });
+
+  test("records history using request user when added_for_user_id is blank", async () => {
+    const req = {
+      params: { householdId: "1", storeId: "2" },
+      body: { item_name: "milk", quantity: "1", added_for_user_id: "   " },
+      user: { id: 7 },
+      processedImage: null,
+    };
+    const res = createResponse();
+
+    await controller.addItem(req, res);
+
+    expect(householdModel.isHouseholdMember).not.toHaveBeenCalled();
+    expect(List.addOrUpdateItem).toHaveBeenCalled();
+    expect(List.addHistoryRecord).toHaveBeenCalledWith(42, "1", 7);
+    expect(res.status).not.toHaveBeenCalledWith(400);
+  });
+
   test("rejects invalid added_for_user_id", async () => {
     const req = {
       params: { householdId: "1", storeId: "2" },
@@ -73,6 +107,29 @@ describe("lists.controller.v2 addItem", () => {
     );
   });
 
+  test("rejects malformed numeric-looking added_for_user_id", async () => {
+    const req = {
+      params: { householdId: "1", storeId: "2" },
+      body: { item_name: "milk", quantity: "1", added_for_user_id: "9abc" },
+      user: { id: 7 },
+      processedImage: null,
+    };
+    const res = createResponse();
+
+    await controller.addItem(req, res);
+
+    expect(List.addOrUpdateItem).not.toHaveBeenCalled();
+    expect(List.addHistoryRecord).not.toHaveBeenCalled();
+    expect(res.status).toHaveBeenCalledWith(400);
+    expect(res.json).toHaveBeenCalledWith(
+      expect.objectContaining({
+        error: expect.objectContaining({
+          message: "Added-for user ID must be a positive integer",
+        }),
+      })
+    );
+  });
+
   test("rejects added_for_user_id when target user is not household member", async () => {
     householdModel.isHouseholdMember.mockResolvedValue(false);
 

debug.log

@@ -0,0 +1,6 @@
+[0219/013019.369:ERROR:third_party\crashpad\crashpad\util\win\registration_protocol_win.cc:108] CreateFile: Access is denied. (0x5)
+[0219/013019.648:ERROR:third_party\crashpad\crashpad\util\win\registration_protocol_win.cc:108] CreateFile: Access is denied. (0x5)
+[0219/013030.696:ERROR:third_party\crashpad\crashpad\util\win\registration_protocol_win.cc:108] CreateFile: Access is denied. (0x5)
+[0219/013038.475:ERROR:third_party\crashpad\crashpad\util\win\registration_protocol_win.cc:108] CreateFile: Access is denied. (0x5)
+[0219/013103.277:ERROR:third_party\crashpad\crashpad\util\win\registration_protocol_win.cc:108] CreateFile: Access is denied. (0x5)
+[0219/014227.547:ERROR:third_party\crashpad\crashpad\util\win\registration_protocol_win.cc:108] CreateFile: Access is denied. (0x5)

dev-rebuild.sh

@@ -1,8 +1,5 @@
 #!/bin/bash
-# Quick script to rebuild Docker Compose dev environment
+set -euo pipefail
 
-echo "Stopping containers and removing volumes..."
-docker-compose -f docker-compose.dev.yml down -v
-
-echo "Rebuilding and starting containers..."
-docker-compose -f docker-compose.dev.yml up --build
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+exec "$SCRIPT_DIR/rebuild-dev.sh" "$@"

docs/DB_MIGRATION_WORKFLOW.md

@@ -16,10 +16,19 @@ This project uses an external on-prem Postgres database. Migration files are can
   - `npm run db:migrate:status`
 - Fail if pending migrations exist:
   - `npm run db:migrate:verify`
+- Create a new migration file:
+  - `npm run db:migrate:new -- <migration-name>`
+- Track stale legacy SQL in `backend/migrations`:
+  - `npm run db:migrate:stale`
+- Fail when stale legacy SQL exists:
+  - `npm run db:migrate:stale:check`
 
 ## Active migration set
 Migration files are applied in lexicographic filename order from `packages/db/migrations`.
 
+`backend/migrations` is legacy reference-only and not part of canonical execution.
+`packages/db/migrations/stale-files.json` is the source of truth for canonical files that are intentionally stale/ignored.
+
 Current baseline files:
 - `add_display_name_column.sql`
 - `add_image_columns.sql`
@@ -37,9 +46,11 @@ Applied migrations are recorded in:
 ## Expected operator flow
 1. Check status:
    - `npm run db:migrate:status`
-2. Apply pending:
+2. If a new implementation needs schema changes, create a new file:
+   - `npm run db:migrate:new -- <migration-name>`
+3. Apply pending:
    - `npm run db:migrate`
-3. Verify clean state:
+4. Verify clean state:
    - `npm run db:migrate:verify`
 
 ## Troubleshooting
@@ -49,3 +60,8 @@ Applied migrations are recorded in:
   - Install PostgreSQL client tools and retry.
 - SQL failure:
   - Fix migration SQL and rerun; only successful files are recorded in `schema_migrations`.
+- Skip known stale SQL files for a specific environment:
+  - Set `DB_MIGRATE_SKIP_FILES` to a comma-separated filename list.
+  - Example: `DB_MIGRATE_SKIP_FILES=add_modified_on_column.sql,add_image_columns.sql`
+- Temporarily include files listed in `stale-files.json`:
+  - Set `DB_MIGRATE_INCLUDE_STALE=true` before running migration commands.

frontend/package-lock.json

@@ -15,6 +15,7 @@
       },
       "devDependencies": {
         "@eslint/js": "^9.39.1",
+        "@playwright/test": "^1.52.0",
         "@types/node": "^24.10.0",
         "@types/react": "^19.2.5",
         "@types/react-dom": "^19.2.2",
@@ -981,6 +982,21 @@
         "node": ">= 8"
       }
     },
+    "node_modules/@playwright/test": {
+      "version": "1.58.2",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.58.2.tgz",
+      "integrity": "sha512-akea+6bHYBBfA9uQqSYmlJXn61cTa+jbO87xVLCWbTqbWadRVmhxlXATaOjOgcBaWU4ePo0wB41KMFv3o35IXA==",
+      "dev": true,
+      "dependencies": {
+        "playwright": "1.58.2"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@rolldown/pluginutils": {
       "version": "1.0.0-beta.47",
       "resolved": "https://registry.npmjs.org/@rolldown/pluginutils/-/pluginutils-1.0.0-beta.47.tgz",
@@ -2915,6 +2931,50 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/playwright": {
+      "version": "1.58.2",
+      "resolved": "https://registry.npmjs.org/playwright/-/playwright-1.58.2.tgz",
+      "integrity": "sha512-vA30H8Nvkq/cPBnNw4Q8TWz1EJyqgpuinBcHET0YVJVFldr8JDNiU9LaWAE1KqSkRYazuaBhTpB5ZzShOezQ6A==",
+      "dev": true,
+      "dependencies": {
+        "playwright-core": "1.58.2"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "fsevents": "2.3.2"
+      }
+    },
+    "node_modules/playwright-core": {
+      "version": "1.58.2",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.58.2.tgz",
+      "integrity": "sha512-yZkEtftgwS8CsfYo7nm0KE8jsvm6i/PTgVtB8DL726wNf6H2IMsDuxCpJj59KDaxCtSnrWan2AeDqM7JBaultg==",
+      "dev": true,
+      "bin": {
+        "playwright-core": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/playwright/node_modules/fsevents": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
+      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "optional": true,
+      "os": [
+        "darwin"
+      ],
+      "engines": {
+        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
+      }
+    },
     "node_modules/postcss": {
       "version": "8.5.6",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.6.tgz",

frontend/package.json

@@ -7,7 +7,10 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "test:e2e": "playwright test",
+    "test:e2e:headed": "playwright test --headed",
+    "test:e2e:ui": "playwright test --ui"
   },
   "dependencies": {
     "axios": "^1.13.2",
@@ -16,6 +19,7 @@
     "react-router-dom": "^7.9.6"
   },
   "devDependencies": {
+    "@playwright/test": "^1.52.0",
     "@eslint/js": "^9.39.1",
     "@types/node": "^24.10.0",
     "@types/react": "^19.2.5",

frontend/playwright.config.ts

@@ -0,0 +1,29 @@
+import { defineConfig } from "@playwright/test";
+
+const baseURL = process.env.PLAYWRIGHT_BASE_URL || "http://localhost:3010";
+
+export default defineConfig({
+  testDir: "./tests",
+  fullyParallel: true,
+  forbidOnly: Boolean(process.env.CI),
+  retries: process.env.CI ? 2 : 0,
+  reporter: [["list"], ["html", { open: "never" }]],
+  use: {
+    baseURL,
+    trace: "on-first-retry",
+    screenshot: "only-on-failure",
+    video: "retain-on-failure",
+  },
+  projects: [
+    {
+      name: "chrome",
+      use: { browserName: "chromium", channel: "chrome" },
+    },
+  ],
+  webServer: {
+    command: "npm run dev -- --host localhost --port 3010",
+    url: baseURL,
+    reuseExistingServer: !process.env.CI,
+    timeout: 120 * 1000,
+  },
+});

frontend/src/App.jsx

@@ -1,8 +1,10 @@
 import { BrowserRouter, Route, Routes } from "react-router-dom";
 import { ROLES } from "./constants/roles";
 import { AuthProvider } from "./context/AuthContext.jsx";
+import { ActionToastProvider } from "./context/ActionToastContext.jsx";
 import { ConfigProvider } from "./context/ConfigContext.jsx";
 import { HouseholdProvider } from "./context/HouseholdContext.jsx";
+import { UploadQueueProvider } from "./context/UploadQueueContext.jsx";
 import { SettingsProvider } from "./context/SettingsContext.jsx";
 import { StoreProvider } from "./context/StoreContext.jsx";
 
@@ -12,26 +14,28 @@ import Login from "./pages/Login.jsx";
 import Manage from "./pages/Manage.jsx";
 import Register from "./pages/Register.jsx";
 import Settings from "./pages/Settings.jsx";
+import InviteLink from "./pages/InviteLink.jsx";
 
 import AppLayout from "./components/layout/AppLayout.jsx";
+import UploadToaster from "./components/common/UploadToaster.jsx";
 import PrivateRoute from "./utils/PrivateRoute.jsx";
-
 import RoleGuard from "./utils/RoleGuard.jsx";
 
-
 function App() {
   return (
     <ConfigProvider>
       <AuthProvider>
         <HouseholdProvider>
           <StoreProvider>
+            <UploadQueueProvider>
+              <ActionToastProvider>
                 <SettingsProvider>
                   <BrowserRouter>
                     <Routes>
-
                       {/* Public route */}
                       <Route path="/login" element={<Login />} />
                       <Route path="/register" element={<Register />} />
+                      <Route path="/invite/:token" element={<InviteLink />} />
 
                       {/* Private routes with layout */}
                       <Route
@@ -54,10 +58,12 @@ function App() {
                           }
                         />
                       </Route>
-
                     </Routes>
+                    <UploadToaster />
                   </BrowserRouter>
                 </SettingsProvider>
+              </ActionToastProvider>
+            </UploadQueueProvider>
           </StoreProvider>
         </HouseholdProvider>
       </AuthProvider>

frontend/src/api/households.js

@@ -56,3 +56,38 @@ export const updateMemberRole = (householdId, userId, role) =>
  */
 export const removeMember = (householdId, userId) =>
   api.delete(`/households/${householdId}/members/${userId}`);
+
+function groupHeaders(groupId) {
+  return {
+    headers: {
+      "x-group-id": String(groupId),
+    },
+  };
+}
+
+export const getGroupInviteLinks = (groupId) =>
+  api.get("/api/groups/invites", groupHeaders(groupId));
+
+export const createGroupInviteLink = (groupId, payload) =>
+  api.post("/api/groups/invites", payload, groupHeaders(groupId));
+
+export const revokeGroupInviteLink = (groupId, linkId) =>
+  api.post("/api/groups/invites/revoke", { linkId }, groupHeaders(groupId));
+
+export const reviveGroupInviteLink = (groupId, linkId, ttlDays) =>
+  api.post("/api/groups/invites/revive", { linkId, ttlDays }, groupHeaders(groupId));
+
+export const deleteGroupInviteLink = (groupId, linkId) =>
+  api.post("/api/groups/invites/delete", { linkId }, groupHeaders(groupId));
+
+export const getGroupJoinPolicy = (groupId) =>
+  api.get("/api/groups/join-policy", groupHeaders(groupId));
+
+export const setGroupJoinPolicy = (groupId, joinPolicy) =>
+  api.post("/api/groups/join-policy", { joinPolicy }, groupHeaders(groupId));
+
+export const getInviteLinkSummary = (token) =>
+  api.get(`/api/invite-links/${encodeURIComponent(token)}`);
+
+export const acceptInviteLink = (token) =>
+  api.post(`/api/invite-links/${encodeURIComponent(token)}`);

frontend/src/components/admin/StoreManagement.jsx

@@ -1,8 +1,11 @@
 import { useEffect, useState } from "react";
 import { createStore, deleteStore, getAllStores, updateStore } from "../../api/stores";
+import useActionToast from "../../hooks/useActionToast";
+import getApiErrorMessage from "../../lib/getApiErrorMessage";
 import "../../styles/components/admin/StoreManagement.css";
 
 export default function StoreManagement() {
+  const toast = useActionToast();
   const [stores, setStores] = useState([]);
   const [loading, setLoading] = useState(true);
   const [editingStore, setEditingStore] = useState(null);
@@ -24,7 +27,8 @@ export default function StoreManagement() {
       setStores(response.data);
     } catch (error) {
       console.error("Failed to load stores:", error);
-      alert("Failed to load stores");
+      const message = getApiErrorMessage(error, "Failed to load stores");
+      toast.error("Load stores failed", `Load stores failed: ${message}`);
     } finally {
       setLoading(false);
     }
@@ -38,12 +42,14 @@ export default function StoreManagement() {
       const zonesJson = formData.zones.length > 0 ? JSON.stringify(formData.zones) : null;
       await createStore(formData.name, zonesJson);
       await loadStores();
+      toast.success("Created store", `Created store ${formData.name.trim()}`);
       setShowCreateForm(false);
       setFormData({ name: "", zones: [] });
       setNewZone("");
     } catch (error) {
       console.error("Failed to create store:", error);
-      alert(error.response?.data?.error || "Failed to create store");
+      const message = getApiErrorMessage(error, "Failed to create store");
+      toast.error("Create store failed", `Create store failed: ${message}`);
     }
   };
 
@@ -55,12 +61,14 @@ export default function StoreManagement() {
       const zonesJson = formData.zones.length > 0 ? JSON.stringify(formData.zones) : null;
       await updateStore(editingStore.id, formData.name, zonesJson);
       await loadStores();
+      toast.success("Updated store", `Updated store ${formData.name.trim()}`);
       setEditingStore(null);
       setFormData({ name: "", zones: [] });
       setNewZone("");
     } catch (error) {
       console.error("Failed to update store:", error);
-      alert(error.response?.data?.error || "Failed to update store");
+      const message = getApiErrorMessage(error, "Failed to update store");
+      toast.error("Update store failed", `Update store failed: ${message}`);
     }
   };
 
@@ -70,9 +78,11 @@ export default function StoreManagement() {
     try {
       await deleteStore(storeId);
       await loadStores();
+      toast.success("Deleted store", `Deleted store ${storeName}`);
     } catch (error) {
       console.error("Failed to delete store:", error);
-      alert(error.response?.data?.error || "Failed to delete store");
+      const message = getApiErrorMessage(error, "Failed to delete store");
+      toast.error("Delete store failed", `Delete store failed: ${message}`);
     }
   };
 

frontend/src/components/common/UploadToaster.jsx

@@ -0,0 +1,92 @@
+import useUploadQueue from "../../hooks/useUploadQueue";
+import useActionToast from "../../hooks/useActionToast";
+import "../../styles/components/UploadToaster.css";
+
+function getStatusLabel(upload, isOnline) {
+  if (upload.status === "uploading") {
+    return `Uploading... ${upload.progress || 0}%`;
+  }
+  if (upload.status === "success") {
+    return "Upload complete";
+  }
+  if (upload.status === "queued") {
+    return isOnline ? "Queued for upload..." : "Waiting for network...";
+  }
+  return upload.lastError || "Upload failed. Retry or discard.";
+}
+
+export default function UploadToaster() {
+  const { uploads, isOnline, retryUpload, discardUpload } = useUploadQueue();
+  const { toasts, dismiss } = useActionToast();
+
+  if (!uploads.length && !toasts.length) {
+    return null;
+  }
+
+  const sortedToasts = [...toasts].sort((a, b) => (b.createdAt || 0) - (a.createdAt || 0));
+  const sortedUploads = [...uploads].sort(
+    (a, b) => (b.updatedAt || b.createdAt || 0) - (a.updatedAt || a.createdAt || 0)
+  );
+
+  return (
+    <div className="upload-toaster" aria-live="polite" aria-atomic="false">
+      {sortedToasts.map((toast) => (
+        <div
+          key={toast.id}
+          className={`upload-toast action-toast action-toast-${toast.variant}`}
+          role={toast.variant === "error" ? "alert" : "status"}
+        >
+          <div className="action-toast-header">
+            <div className="upload-toast-title">{toast.title}</div>
+            <button
+              type="button"
+              onClick={() => dismiss(toast.id)}
+              className="action-toast-close"
+              aria-label="Dismiss notification"
+            >
+              x
+            </button>
+          </div>
+          {toast.message ? <div className="upload-toast-status">{toast.message}</div> : null}
+        </div>
+      ))}
+
+      {sortedUploads.map((upload) => (
+        <div
+          key={upload.id}
+          className={`upload-toast upload-toast-${upload.status}`}
+          role="status"
+        >
+          <div className="upload-toast-title">{upload.itemName}</div>
+          <div className="upload-toast-status">{getStatusLabel(upload, isOnline)}</div>
+
+          <div className="upload-toast-progress">
+            <div
+              className="upload-toast-progress-fill"
+              style={{ width: `${upload.status === "success" ? 100 : upload.progress || 0}%` }}
+            />
+          </div>
+
+          {upload.status === "failed" && (
+            <div className="upload-toast-actions">
+              <button type="button" onClick={() => retryUpload(upload.id)}>
+                Retry
+              </button>
+              <button type="button" onClick={() => discardUpload(upload.id)}>
+                Discard
+              </button>
+            </div>
+          )}
+
+          {upload.status === "queued" && (
+            <div className="upload-toast-actions">
+              <button type="button" onClick={() => discardUpload(upload.id)}>
+                Discard
+              </button>
+            </div>
+          )}
+        </div>
+      ))}
+    </div>
+  );
+}

frontend/src/components/forms/AddItemForm.jsx

@@ -37,7 +37,14 @@ export default function AddItemForm({
     e.preventDefault();
     if (!itemName.trim()) return;
 
-    const targetUserId = assignmentMode === "others" ? assignedUserId : null;
+    if (assignmentMode === "others" && assignedUserId == null) {
+      if (otherMembers.length > 0) {
+        setShowAssignModal(true);
+      }
+      return;
+    }
+
+    const targetUserId = assignmentMode === "others" ? Number(assignedUserId) : null;
     onAdd(itemName, quantity, targetUserId);
     setItemName("");
     setQuantity(1);
@@ -124,7 +131,7 @@ export default function AddItemForm({
             value={assignmentMode}
             ariaLabel="Item assignment mode"
             className="tbg-group add-item-form-assignee-toggle"
-            sizeClassName="tbg-size-xs"
+            sizeClassName="tbg-size-xxs"
             options={[
               { value: "me", label: "Me" },
               { value: "others", label: "Others", disabled: otherMembers.length === 0 }

frontend/src/components/layout/Navbar.jsx

@@ -1,13 +1,17 @@
 import "../../styles/components/Navbar.css";
 
 import { useContext, useState } from "react";
-import { Link } from "react-router-dom";
+import { Link, useNavigate } from "react-router-dom";
 import { logoutRequest } from "../../api/auth";
 import { AuthContext } from "../../context/AuthContext";
+import useActionToast from "../../hooks/useActionToast";
+import getApiErrorMessage from "../../lib/getApiErrorMessage";
 import HouseholdSwitcher from "../household/HouseholdSwitcher";
 
 export default function Navbar() {
+  const navigate = useNavigate();
   const { role, logout, username } = useContext(AuthContext);
+  const toast = useActionToast();
   const [showUserMenu, setShowUserMenu] = useState(false);
 
   const closeMenus = () => {
@@ -15,14 +19,23 @@ export default function Navbar() {
   };
 
   const handleLogout = async () => {
+    let loggedOutRemotely = true;
+    let fallbackReason = "";
     try {
       await logoutRequest();
-    } catch (_) {
+    } catch (error) {
       // Clear local auth state even if server logout fails.
+      loggedOutRemotely = false;
+      fallbackReason = getApiErrorMessage(error, "Unable to end server session");
     } finally {
       logout();
       closeMenus();
-      window.location.href = "/login";
+      if (loggedOutRemotely) {
+        toast.success("Logged out", "Logged out successfully");
+      } else {
+        toast.info("Logged out locally", `Server logout failed: ${fallbackReason}`);
+      }
+      navigate("/login");
     }
   };
 

frontend/src/components/manage/CreateJoinHousehold.jsx

@@ -1,16 +1,39 @@
 import { useContext, useState } from "react";
+import { useNavigate } from "react-router-dom";
 import { createHousehold, joinHousehold } from "../../api/households";
 import { HouseholdContext } from "../../context/HouseholdContext";
+import useActionToast from "../../hooks/useActionToast";
+import getApiErrorMessage from "../../lib/getApiErrorMessage";
 import "../../styles/components/manage/CreateJoinHousehold.css";
 
 export default function CreateJoinHousehold({ onClose }) {
+  const navigate = useNavigate();
+  const toast = useActionToast();
   const { refreshHouseholds } = useContext(HouseholdContext);
-  const [mode, setMode] = useState("create"); // "create" or "join"
+  const [mode, setMode] = useState("create");
   const [householdName, setHouseholdName] = useState("");
   const [inviteCode, setInviteCode] = useState("");
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState("");
 
+  const extractInviteToken = (value) => {
+    const trimmed = value.trim();
+    if (!trimmed) return null;
+
+    const directMatch = trimmed.match(/^\/?invite\/([a-zA-Z0-9]+)$/);
+    if (directMatch) return directMatch[1];
+
+    try {
+      const parsed = new URL(trimmed, window.location.origin);
+      const urlMatch = parsed.pathname.match(/^\/invite\/([a-zA-Z0-9]+)$/);
+      if (urlMatch) return urlMatch[1];
+    } catch (error) {
+      return null;
+    }
+
+    return null;
+  };
+
   const handleCreate = async (e) => {
     e.preventDefault();
     if (!householdName.trim()) return;
@@ -21,10 +44,13 @@ export default function CreateJoinHousehold({ onClose }) {
     try {
       await createHousehold(householdName);
       await refreshHouseholds();
+      toast.success("Created household", `Created household ${householdName.trim()}`);
       onClose();
     } catch (err) {
       console.error("Failed to create household:", err);
-      setError(err.response?.data?.message || "Failed to create household");
+      const message = getApiErrorMessage(err, "Failed to create household");
+      setError(message);
+      toast.error("Create household failed", `Create household failed: ${message}`);
     } finally {
       setLoading(false);
     }
@@ -38,12 +64,23 @@ export default function CreateJoinHousehold({ onClose }) {
     setError("");
 
     try {
+      const inviteToken = extractInviteToken(inviteCode);
+      if (inviteToken) {
+        toast.info("Invite link detected", "Opening invite details");
+        onClose();
+        navigate(`/invite/${inviteToken}`);
+        return;
+      }
+
       await joinHousehold(inviteCode);
       await refreshHouseholds();
+      toast.success("Joined household", "Joined household successfully");
       onClose();
     } catch (err) {
       console.error("Failed to join household:", err);
-      setError(err.response?.data?.message || "Failed to join household");
+      const message = getApiErrorMessage(err, "Failed to join household");
+      setError(message);
+      toast.error("Join household failed", `Join household failed: ${message}`);
     } finally {
       setLoading(false);
     }
@@ -54,7 +91,7 @@ export default function CreateJoinHousehold({ onClose }) {
       <div className="create-join-modal" onClick={(e) => e.stopPropagation()}>
         <div className="modal-header">
           <h2>Household</h2>
-          <button className="close-btn" onClick={onClose}>×</button>
+          <button className="close-btn" onClick={onClose}>&times;</button>
         </div>
 
         <div className="mode-tabs">
@@ -100,18 +137,18 @@ export default function CreateJoinHousehold({ onClose }) {
         ) : (
           <form onSubmit={handleJoin} className="household-form">
             <div className="form-group">
-              <label htmlFor="inviteCode">Invite Code</label>
+              <label htmlFor="inviteCode">Invite Code or Link</label>
               <input
                 id="inviteCode"
                 type="text"
                 value={inviteCode}
                 onChange={(e) => setInviteCode(e.target.value)}
-                placeholder="Enter invite code"
+                placeholder="Invite code or /invite URL"
                 required
                 autoFocus
               />
               <p className="form-hint">
-                Ask the household admin for the invite code
+                Paste a raw invite code or full invite link URL
               </p>
             </div>
             <div className="form-actions">

frontend/src/components/manage/ManageHousehold.jsx

@@ -1,30 +1,59 @@
 import React, { useContext, useEffect, useState } from "react";
 import {
+  createGroupInviteLink,
+  deleteGroupInviteLink,
   deleteHousehold,
+  getGroupInviteLinks,
+  getGroupJoinPolicy,
   getHouseholdMembers,
   refreshInviteCode,
   removeMember,
+  revokeGroupInviteLink,
+  reviveGroupInviteLink,
+  setGroupJoinPolicy,
   updateHousehold,
   updateMemberRole
 } from "../../api/households";
+import { ToggleButtonGroup } from "../common";
+import ConfirmSlideModal from "../modals/ConfirmSlideModal";
 import { AuthContext } from "../../context/AuthContext";
 import { HouseholdContext } from "../../context/HouseholdContext";
+import useActionToast from "../../hooks/useActionToast";
+import getApiErrorMessage from "../../lib/getApiErrorMessage";
 import "../../styles/components/manage/ManageHousehold.css";
 
+const JOIN_POLICY_OPTIONS = [
+  { label: "Disabled", value: "NOT_ACCEPTING" },
+  { label: "Auto", value: "AUTO_ACCEPT" },
+  { label: "Manual", value: "APPROVAL_REQUIRED" },
+];
+
 export default function ManageHousehold() {
   const { userId } = useContext(AuthContext);
   const { activeHousehold, refreshHouseholds } = useContext(HouseholdContext);
+  const toast = useActionToast();
   const [members, setMembers] = useState([]);
   const [loading, setLoading] = useState(true);
   const [editingName, setEditingName] = useState(false);
   const [newName, setNewName] = useState("");
   const [showInviteCode, setShowInviteCode] = useState(false);
+  const [joinPolicy, setJoinPolicyValue] = useState("NOT_ACCEPTING");
+  const [inviteLinks, setInviteLinks] = useState([]);
+  const [inviteLoading, setInviteLoading] = useState(false);
+  const [inviteError, setInviteError] = useState("");
+  const [ttlDays, setTtlDays] = useState(7);
+  const [singleUseMode, setSingleUseMode] = useState("UNLIMITED");
+  const [isLeaveModalOpen, setIsLeaveModalOpen] = useState(false);
 
-  const isAdmin = activeHousehold?.role === "admin";
+  const isManager = ["owner", "admin"].includes(activeHousehold?.role);
+  const isMemberOnly = activeHousehold?.role === "member";
 
   useEffect(() => {
     loadMembers();
-  }, [activeHousehold?.id]);
+    if (isManager) {
+      loadJoinAndInvites();
+    }
+  }, [activeHousehold?.id, isManager]);
 
   const loadMembers = async () => {
     if (!activeHousehold?.id) return;
@@ -39,6 +68,147 @@ export default function ManageHousehold() {
     }
   };
 
+  const loadJoinAndInvites = async () => {
+    if (!activeHousehold?.id || !isManager) return;
+    setInviteLoading(true);
+    setInviteError("");
+    try {
+      const [policyResponse, linksResponse] = await Promise.all([
+        getGroupJoinPolicy(activeHousehold.id),
+        getGroupInviteLinks(activeHousehold.id),
+      ]);
+      setJoinPolicyValue(policyResponse.data.joinPolicy || "NOT_ACCEPTING");
+      setInviteLinks(linksResponse.data.links || []);
+    } catch (error) {
+      setInviteError(error.response?.data?.error?.message || "Failed to load invite links");
+    } finally {
+      setInviteLoading(false);
+    }
+  };
+
+  const getLinkStatus = (link) => {
+    const now = Date.now();
+    if (link.single_use && link.used_at) return "Used";
+    if (link.revoked_at) return "Revoked";
+    if (new Date(link.expires_at).getTime() <= now) return "Expired";
+    return "Active";
+  };
+
+  const copyTextToClipboard = async (text) => {
+    if (!text) return false;
+
+    if (navigator?.clipboard?.writeText) {
+      try {
+        await navigator.clipboard.writeText(text);
+        return true;
+      } catch {
+        // Fall through to legacy copy fallback.
+      }
+    }
+
+    try {
+      const textArea = document.createElement("textarea");
+      textArea.value = text;
+      textArea.setAttribute("readonly", "");
+      textArea.style.position = "fixed";
+      textArea.style.top = "-9999px";
+      textArea.style.left = "-9999px";
+      document.body.appendChild(textArea);
+      textArea.focus();
+      textArea.select();
+      const copied = document.execCommand("copy");
+      document.body.removeChild(textArea);
+      return copied;
+    } catch {
+      return false;
+    }
+  };
+
+  const copyInviteLink = async (token) => {
+    const inviteUrl = `${window.location.origin}/invite/${encodeURIComponent(token)}`;
+    const copied = await copyTextToClipboard(inviteUrl);
+    if (copied) {
+      const tokenLast4 = String(token || "").slice(-4);
+      toast.info("Copied invite link", `Copied invite link ending in ${tokenLast4}`);
+      return;
+    }
+
+    toast.error(
+      "Copy invite link failed",
+      "Copy invite link failed: unable to access clipboard. Copy manually."
+    );
+  };
+
+  const handleCreateInviteLink = async () => {
+    try {
+      setInviteError("");
+      await createGroupInviteLink(activeHousehold.id, {
+        policy: joinPolicy,
+        singleUse: singleUseMode === "ONE_TIME",
+        ttlDays,
+      });
+      await loadJoinAndInvites();
+      toast.success("Created invite link", `Created invite link (${ttlDays} day TTL)`);
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to create invite link");
+      setInviteError(message);
+      toast.error("Create invite link failed", `Create invite link failed: ${message}`);
+    }
+  };
+
+  const handleUpdateJoinPolicy = async (value) => {
+    try {
+      setInviteError("");
+      await setGroupJoinPolicy(activeHousehold.id, value);
+      setJoinPolicyValue(value);
+      toast.success("Updated join policy", `Join policy set to ${value}`);
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to update join policy");
+      setInviteError(message);
+      toast.error("Update join policy failed", `Update join policy failed: ${message}`);
+    }
+  };
+
+  const handleRevokeInvite = async (linkId) => {
+    try {
+      setInviteError("");
+      await revokeGroupInviteLink(activeHousehold.id, linkId);
+      await loadJoinAndInvites();
+      toast.success("Revoked invite link", "Revoked invite link");
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to revoke invite link");
+      setInviteError(message);
+      toast.error("Revoke invite link failed", `Revoke invite link failed: ${message}`);
+    }
+  };
+
+  const handleReviveInvite = async (linkId) => {
+    try {
+      setInviteError("");
+      await reviveGroupInviteLink(activeHousehold.id, linkId, ttlDays);
+      await loadJoinAndInvites();
+      toast.success("Revived invite link", `Revived invite link for ${ttlDays} days`);
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to revive invite link");
+      setInviteError(message);
+      toast.error("Revive invite link failed", `Revive invite link failed: ${message}`);
+    }
+  };
+
+  const handleDeleteInvite = async (linkId) => {
+    if (!confirm("Delete this invite link permanently?")) return;
+    try {
+      setInviteError("");
+      await deleteGroupInviteLink(activeHousehold.id, linkId);
+      await loadJoinAndInvites();
+      toast.success("Deleted invite link", "Deleted invite link");
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to delete invite link");
+      setInviteError(message);
+      toast.error("Delete invite link failed", `Delete invite link failed: ${message}`);
+    }
+  };
+
   const handleUpdateName = async () => {
     if (!newName.trim() || newName === activeHousehold.name) {
       setEditingName(false);
@@ -46,15 +216,13 @@ export default function ManageHousehold() {
     }
 
     try {
-      console.log('Updating household:', activeHousehold.id, 'with name:', newName);
-      const response = await updateHousehold(activeHousehold.id, newName);
-      console.log('Update response:', response);
+      await updateHousehold(activeHousehold.id, newName);
       await refreshHouseholds();
+      toast.success("Updated household name", `Updated household name to ${newName.trim()}`);
       setEditingName(false);
     } catch (error) {
-      console.error("Failed to update household name:", error);
-      console.error("Error response:", error.response?.data);
-      alert(`Failed to update household name: ${error.response?.data?.error || error.message}`);
+      const message = getApiErrorMessage(error, "Failed to update household name");
+      toast.error("Update household name failed", `Update household name failed: ${message}`);
     }
   };
 
@@ -62,46 +230,39 @@ export default function ManageHousehold() {
     if (!confirm("Generate a new invite code? The old code will no longer work.")) return;
 
     try {
-      const response = await refreshInviteCode(activeHousehold.id);
+      await refreshInviteCode(activeHousehold.id);
       await refreshHouseholds();
-      const refreshedInviteCode = response.data?.household?.invite_code;
-      if (refreshedInviteCode) {
-        alert(`New invite code: ${refreshedInviteCode}`);
-      } else {
-        alert("Invite code refreshed successfully");
-      }
+      toast.success("Generated new invite code", "Generated a new invite code");
     } catch (error) {
-      console.error(
-        "Failed to refresh invite code:",
-        error?.response?.data?.error?.message ||
-        error?.response?.data?.message ||
-        error?.message
-      );
-      alert("Failed to refresh invite code");
+      const message = getApiErrorMessage(error, "Failed to refresh invite code");
+      toast.error("Refresh invite code failed", `Refresh invite code failed: ${message}`);
     }
   };
 
-  const handleUpdateRole = async (userId, currentRole) => {
+  const handleUpdateRole = async (memberId, currentRole, memberName) => {
+    if (currentRole === "owner") return;
     const newRole = currentRole === "admin" ? "member" : "admin";
 
     try {
-      await updateMemberRole(activeHousehold.id, userId, newRole);
+      await updateMemberRole(activeHousehold.id, memberId, newRole);
       await loadMembers();
+      toast.success("Updated member role", `Updated role for ${memberName} to ${newRole}`);
     } catch (error) {
-      console.error("Failed to update role:", error);
-      alert("Failed to update member role");
+      const message = getApiErrorMessage(error, "Failed to update member role");
+      toast.error("Update member role failed", `Update member role failed: ${message}`);
     }
   };
 
-  const handleRemoveMember = async (userId, username) => {
+  const handleRemoveMember = async (memberId, username) => {
     if (!confirm(`Remove ${username} from this household?`)) return;
 
     try {
-      await removeMember(activeHousehold.id, userId);
+      await removeMember(activeHousehold.id, memberId);
       await loadMembers();
+      toast.success("Removed member", `Removed member ${username}`);
     } catch (error) {
-      console.error("Failed to remove member:", error);
-      alert("Failed to remove member");
+      const message = getApiErrorMessage(error, "Failed to remove member");
+      toast.error("Remove member failed", `Remove member failed: ${message}`);
     }
   };
 
@@ -110,22 +271,46 @@ export default function ManageHousehold() {
     if (!confirm("Are you absolutely sure? Type DELETE to confirm.")) return;
 
     try {
+      const householdName = activeHousehold.name;
       await deleteHousehold(activeHousehold.id);
       await refreshHouseholds();
+      toast.success("Deleted household", `Deleted household ${householdName}`);
     } catch (error) {
-      console.error("Failed to delete household:", error);
-      alert("Failed to delete household");
+      const message = getApiErrorMessage(error, "Failed to delete household");
+      toast.error("Delete household failed", `Delete household failed: ${message}`);
     }
   };
 
-  const copyInviteCode = () => {
-    navigator.clipboard.writeText(activeHousehold.invite_code);
-    alert("Invite code copied to clipboard!");
+  const handleLeaveHousehold = async () => {
+    if (!activeHousehold?.id) return;
+
+    try {
+      const householdName = activeHousehold.name;
+      await removeMember(activeHousehold.id, parseInt(userId, 10));
+      setIsLeaveModalOpen(false);
+      await refreshHouseholds();
+      toast.success("Left household", `Left household ${householdName}`);
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to leave household");
+      toast.error("Leave household failed", `Leave household failed: ${message}`);
+    }
+  };
+
+  const copyInviteCode = async () => {
+    const copied = await copyTextToClipboard(activeHousehold.invite_code);
+    if (copied) {
+      toast.info("Copied invite code", "Copied invite code to clipboard");
+      return;
+    }
+
+    toast.error(
+      "Copy invite code failed",
+      "Copy invite code failed: unable to access clipboard. Copy manually."
+    );
   };
 
   return (
     <div className="manage-household">
-      {/* Household Name Section */}
       <section key="household-name" className="manage-section">
         <h2>Household Name</h2>
         {editingName ? (
@@ -143,7 +328,7 @@ export default function ManageHousehold() {
         ) : (
           <div className="name-display">
             <h3>{activeHousehold.name}</h3>
-            {isAdmin && (
+            {isManager && (
               <button
                 onClick={() => {
                   setNewName(activeHousehold.name);
@@ -158,12 +343,11 @@ export default function ManageHousehold() {
         )}
       </section>
 
-      {/* Invite Code Section */}
-      {isAdmin && (
+      {isManager && (
         <section key="invite-code" className="manage-section">
-          <h2>Invite Code</h2>
+          <h2>Legacy Invite Code</h2>
           <p className="section-description">
-            Share this code with others to invite them to your household.
+            Share this code for legacy join-by-code flows.
           </p>
           <div className="invite-actions">
             <button onClick={() => setShowInviteCode(!showInviteCode)} className="btn-secondary">
@@ -182,7 +366,85 @@ export default function ManageHousehold() {
         </section>
       )}
 
-      {/* Members Section */}
+      {isManager && (
+        <section key="join-and-invites" className="manage-section">
+          <h2>Join and Invites</h2>
+          {inviteError && <p className="section-error">{inviteError}</p>}
+
+          <ToggleButtonGroup
+            value={joinPolicy}
+            ariaLabel="Join policy options"
+            className="tbg-group manage-household-join-policy-toggle"
+            options={JOIN_POLICY_OPTIONS.map((option) => ({
+              ...option,
+              disabled: inviteLoading
+            }))}
+            onChange={handleUpdateJoinPolicy}
+          />
+
+          <div className="invite-controls">
+            <label>
+              TTL
+              <select value={ttlDays} onChange={(e) => setTtlDays(Number(e.target.value))}>
+                {[1, 2, 3, 4, 5, 6, 7].map((day) => (
+                  <option key={day} value={day}>{day} day{day > 1 ? "s" : ""}</option>
+                ))}
+              </select>
+            </label>
+            <label>
+              Usage
+              <select value={singleUseMode} onChange={(e) => setSingleUseMode(e.target.value)}>
+                <option value="UNLIMITED">Unlimited</option>
+                <option value="ONE_TIME">1 use</option>
+              </select>
+            </label>
+            <button className="btn-primary" onClick={handleCreateInviteLink} disabled={inviteLoading}>
+              Create link
+            </button>
+          </div>
+
+          {inviteLoading ? (
+            <p>Loading invite links...</p>
+          ) : inviteLinks.length === 0 ? (
+            <p className="section-description">No invite links yet.</p>
+          ) : (
+            <div className="invite-links-list">
+              {inviteLinks.map((link) => {
+                const status = getLinkStatus(link);
+                const isActive = status === "Active";
+                return (
+                  <div key={link.id} className="invite-link-card">
+                    <div>
+                      <p className="invite-link-token">Token ending in {String(link.token).slice(-4)}</p>
+                      <p className="invite-link-meta">
+                        Status: <strong>{status}</strong> | Policy: {link.policy} | TTL: until {new Date(link.expires_at).toLocaleString()}
+                      </p>
+                    </div>
+                    <div className="invite-link-actions">
+                      <button className="btn-secondary btn-small" onClick={() => copyInviteLink(link.token)}>
+                        Copy link
+                      </button>
+                      {isActive ? (
+                        <button className="btn-secondary btn-small" onClick={() => handleRevokeInvite(link.id)}>
+                          Revoke
+                        </button>
+                      ) : (
+                        <button className="btn-secondary btn-small" onClick={() => handleReviveInvite(link.id)}>
+                          Revive
+                        </button>
+                      )}
+                      <button className="btn-danger btn-small" onClick={() => handleDeleteInvite(link.id)}>
+                        Delete
+                      </button>
+                    </div>
+                  </div>
+                );
+              })}
+            </div>
+          )}
+        </section>
+      )}
+
       <section key="members" className="manage-section">
         <h2>Members ({members.length})</h2>
         {loading ? (
@@ -192,22 +454,15 @@ export default function ManageHousehold() {
             {members.map((member) => (
               <div key={member.id} className="member-card">
                 <div className="member-info">
-                  <span className="member-role">
-                    {member.role}
-                  </span>
+                  <span className="member-role">{member.role}</span>
                   <span className="member-name">
-                    {`
-                    ${member.username}
-                    [${member.id}]
-                    ${(member.id === parseInt(userId) ? " (You)" : "")}
-                    `}
+                    {member.username} [{member.id}] {member.id === parseInt(userId, 10) ? "(You)" : ""}
                   </span>
-
                 </div>
-                {isAdmin && member.id !== parseInt(userId) && (
+                {isManager && member.id !== parseInt(userId, 10) && member.role !== "owner" && (
                   <div className="member-actions">
                     <button
-                      onClick={() => handleUpdateRole(member.id, member.role)}
+                      onClick={() => handleUpdateRole(member.id, member.role, member.username)}
                       className="btn-secondary btn-small"
                     >
                       {member.role === "admin" ? "Make Member" : "Make Admin"}
@@ -226,18 +481,34 @@ export default function ManageHousehold() {
         )}
       </section>
 
-      {/* Danger Zone */}
-      {isAdmin && (
+      {(isManager || isMemberOnly) && (
         <section key="danger-zone" className="manage-section danger-zone">
           <h2>Danger Zone</h2>
           <p className="section-description">
-            Deleting a household is permanent and will delete all lists, items, and history.
+            {isMemberOnly
+              ? "Leaving removes your access to this household."
+              : "Deleting a household is permanent and will delete all lists, items, and history."}
           </p>
+          {isMemberOnly ? (
+            <button onClick={() => setIsLeaveModalOpen(true)} className="btn-danger">
+              Leave Household
+            </button>
+          ) : (
             <button onClick={handleDeleteHousehold} className="btn-danger">
               Delete Household
             </button>
+          )}
         </section>
       )}
+
+      <ConfirmSlideModal
+        isOpen={isLeaveModalOpen}
+        title={`Leave "${activeHousehold?.name || "this household"}"?`}
+        description="Slide all the way to confirm. You will lose access to this household."
+        confirmLabel="Leave Household"
+        onClose={() => setIsLeaveModalOpen(false)}
+        onConfirm={handleLeaveHousehold}
+      />
     </div>
   );
 }

frontend/src/components/manage/ManageStores.jsx

@@ -7,16 +7,19 @@ import {
 } from "../../api/stores";
 import { HouseholdContext } from "../../context/HouseholdContext";
 import { StoreContext } from "../../context/StoreContext";
+import useActionToast from "../../hooks/useActionToast";
+import getApiErrorMessage from "../../lib/getApiErrorMessage";
 import "../../styles/components/manage/ManageStores.css";
 
 export default function ManageStores() {
   const { activeHousehold } = useContext(HouseholdContext);
   const { stores: householdStores, refreshStores } = useContext(StoreContext);
+  const toast = useActionToast();
   const [allStores, setAllStores] = useState([]);
   const [loading, setLoading] = useState(true);
   const [showAddStore, setShowAddStore] = useState(false);
 
-  const isAdmin = activeHousehold?.role === "admin";
+  const isAdmin = ["owner", "admin"].includes(activeHousehold?.role);
 
   useEffect(() => {
     loadAllStores();
@@ -35,14 +38,17 @@ export default function ManageStores() {
   };
 
   const handleAddStore = async (storeId) => {
+    const storeName = allStores.find((store) => store.id === storeId)?.name || `store #${storeId}`;
     try {
       console.log("Adding store with ID:", storeId);
       await addStoreToHousehold(activeHousehold.id, storeId, false);
       await refreshStores();
+      toast.success("Added store", `Added store ${storeName}`);
       setShowAddStore(false);
     } catch (error) {
       console.error("Failed to add store:", error);
-      alert("Failed to add store");
+      const message = getApiErrorMessage(error, "Failed to add store");
+      toast.error("Add store failed", `Add store failed: ${message}`);
     }
   };
 
@@ -52,19 +58,25 @@ export default function ManageStores() {
     try {
       await removeStoreFromHousehold(activeHousehold.id, storeId);
       await refreshStores();
+      toast.success("Removed store", `Removed store ${storeName}`);
     } catch (error) {
       console.error("Failed to remove store:", error);
-      alert("Failed to remove store");
+      const message = getApiErrorMessage(error, "Failed to remove store");
+      toast.error("Remove store failed", `Remove store failed: ${message}`);
     }
   };
 
   const handleSetDefault = async (storeId) => {
+    const storeName =
+      householdStores.find((store) => store.id === storeId)?.name || `store #${storeId}`;
     try {
       await setDefaultStore(activeHousehold.id, storeId);
       await refreshStores();
+      toast.success("Updated default store", `Default store set to ${storeName}`);
     } catch (error) {
       console.error("Failed to set default store:", error);
-      alert("Failed to set default store");
+      const message = getApiErrorMessage(error, "Failed to set default store");
+      toast.error("Set default store failed", `Set default store failed: ${message}`);
     }
   };
 

frontend/src/components/modals/ConfirmSlideModal.jsx

@@ -0,0 +1,191 @@
+import { useEffect, useRef, useState } from "react";
+import "../../styles/components/ConfirmSlideModal.css";
+
+const HANDLE_SIZE = 40;
+
+export default function ConfirmSlideModal({
+  isOpen,
+  title,
+  description,
+  confirmLabel = "Confirm",
+  onClose,
+  onConfirm
+}) {
+  const trackRef = useRef(null);
+  const endFlashTimeoutRef = useRef(null);
+  const reachedEndRef = useRef(false);
+
+  const [dragX, setDragX] = useState(0);
+  const [dragging, setDragging] = useState(false);
+  const [isAtEnd, setIsAtEnd] = useState(false);
+  const [endFlash, setEndFlash] = useState(false);
+
+  const getDragPositionFromClientX = (clientX) => {
+    const track = trackRef.current;
+    if (!track) return 0;
+
+    const rect = track.getBoundingClientRect();
+    return Math.min(
+      Math.max(0, clientX - rect.left - HANDLE_SIZE / 2),
+      rect.width - HANDLE_SIZE
+    );
+  };
+
+  const isEndPosition = (position) => {
+    const track = trackRef.current;
+    if (!track) return false;
+    const maxDrag = track.clientWidth - HANDLE_SIZE;
+    const endTolerancePx = 1;
+    return position >= maxDrag - endTolerancePx;
+  };
+
+  const triggerEndFeedback = () => {
+    setEndFlash(true);
+    if (endFlashTimeoutRef.current) {
+      clearTimeout(endFlashTimeoutRef.current);
+    }
+    endFlashTimeoutRef.current = setTimeout(() => setEndFlash(false), 140);
+
+    if (typeof navigator !== "undefined" && typeof navigator.vibrate === "function") {
+      navigator.vibrate(16);
+    }
+  };
+
+  const handlePointerDown = (event) => {
+    event.preventDefault();
+    setDragging(true);
+    reachedEndRef.current = false;
+    setIsAtEnd(false);
+    event.currentTarget.setPointerCapture(event.pointerId);
+  };
+
+  const handlePointerMove = (event) => {
+    if (!dragging) return;
+    const next = getDragPositionFromClientX(event.clientX);
+    const nextAtEnd = isEndPosition(next);
+
+    setDragX(next);
+    setIsAtEnd((prev) => (prev === nextAtEnd ? prev : nextAtEnd));
+
+    if (nextAtEnd && !reachedEndRef.current) {
+      reachedEndRef.current = true;
+      triggerEndFeedback();
+    }
+    if (!nextAtEnd) {
+      reachedEndRef.current = false;
+    }
+  };
+
+  const handlePointerUp = (event) => {
+    if (!dragging) return;
+
+    setDragging(false);
+    event.currentTarget.releasePointerCapture(event.pointerId);
+
+    const releaseX = getDragPositionFromClientX(event.clientX);
+    const releaseAtEnd = isEndPosition(releaseX);
+
+    setIsAtEnd((prev) => (prev ? false : prev));
+
+    if (releaseAtEnd && !reachedEndRef.current) {
+      triggerEndFeedback();
+    }
+
+    setDragX(0);
+    if (releaseAtEnd) {
+      onConfirm();
+    }
+  };
+
+  const handlePointerCancel = (event) => {
+    if (!dragging) return;
+
+    setDragging(false);
+    event.currentTarget.releasePointerCapture(event.pointerId);
+    setIsAtEnd((prev) => (prev ? false : prev));
+    setDragX(0);
+  };
+
+  useEffect(() => {
+    return () => {
+      if (endFlashTimeoutRef.current) {
+        clearTimeout(endFlashTimeoutRef.current);
+      }
+    };
+  }, []);
+
+  useEffect(() => {
+    if (!isOpen) return undefined;
+
+    const handleKeyDown = (event) => {
+      if (event.key === "Escape") {
+        onClose();
+      }
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => window.removeEventListener("keydown", handleKeyDown);
+  }, [isOpen, onClose]);
+
+  useEffect(() => {
+    if (!isOpen) {
+      setDragX(0);
+      setDragging(false);
+      setIsAtEnd(false);
+      setEndFlash(false);
+      reachedEndRef.current = false;
+    }
+  }, [isOpen]);
+
+  if (!isOpen) return null;
+
+  const isActive = isAtEnd || endFlash;
+
+  return (
+    <div className="confirm-slide-overlay" onClick={onClose}>
+      <div className="confirm-slide-modal" onClick={(event) => event.stopPropagation()}>
+        <h2 className="confirm-slide-title">{title}</h2>
+        {description ? <p className="confirm-slide-description">{description}</p> : null}
+
+        <div className="confirm-slide-track-wrap">
+          <div className="confirm-slide-helper">Slide to confirm</div>
+          <div
+            ref={trackRef}
+            className={`confirm-slide-track ${isActive ? "is-active" : ""}`}
+          >
+            <div
+              className="confirm-slide-progress"
+              style={{ width: dragX + HANDLE_SIZE }}
+            />
+            <div className={`confirm-slide-ready ${isActive ? "is-visible" : ""}`}>
+              release
+            </div>
+            <button
+              type="button"
+              className={`confirm-slide-handle ${isActive ? "is-active" : ""}`}
+              style={{ transform: `translateX(${dragX}px)` }}
+              onPointerDown={handlePointerDown}
+              onPointerMove={handlePointerMove}
+              onPointerUp={handlePointerUp}
+              onPointerCancel={handlePointerCancel}
+              aria-label="Slide to confirm"
+            >
+              >
+            </button>
+          </div>
+        </div>
+
+        <div className="confirm-slide-footer">
+          <span className="confirm-slide-label">{confirmLabel}</span>
+          <button
+            type="button"
+            className="confirm-slide-cancel btn btn-outline"
+            onClick={onClose}
+          >
+            Cancel
+          </button>
+        </div>
+      </div>
+    </div>
+  );
+}

frontend/src/components/modals/EditItemModal.jsx

@@ -1,9 +1,12 @@
 import { useEffect, useState } from "react";
 import { ITEM_GROUPS, ITEM_TYPES, getItemTypeLabel, getZoneValues } from "../../constants/classifications";
+import useActionToast from "../../hooks/useActionToast";
+import getApiErrorMessage from "../../lib/getApiErrorMessage";
 import "../../styles/components/EditItemModal.css";
 import AddImageModal from "./AddImageModal";
 
 export default function EditItemModal({ item, onSave, onCancel, onImageUpdate }) {
+  const toast = useActionToast();
   const [itemName, setItemName] = useState(item.item_name || "");
   const [quantity, setQuantity] = useState(item.quantity || 1);
   const [itemType, setItemType] = useState("");
@@ -54,7 +57,8 @@ export default function EditItemModal({ item, onSave, onCancel, onImageUpdate })
       await onSave(item.id, itemName, quantity, classification);
     } catch (error) {
       console.error("Failed to save:", error);
-      alert("Failed to save changes");
+      const message = getApiErrorMessage(error, "Failed to save changes");
+      toast.error("Save item failed", `Save item failed: ${message}`);
     } finally {
       setLoading(false);
     }
@@ -63,11 +67,12 @@ export default function EditItemModal({ item, onSave, onCancel, onImageUpdate })
   const handleImageUpload = async (imageFile) => {
     if (onImageUpdate) {
       try {
-        await onImageUpdate(item.id, itemName, quantity, imageFile);
+        await onImageUpdate(item.id, itemName, quantity, imageFile, "edit_modal");
         setShowImageModal(false);
       } catch (error) {
         console.error("Failed to upload image:", error);
-        alert("Failed to upload image");
+        const message = getApiErrorMessage(error, "Failed to upload image");
+        toast.error("Upload image failed", `Upload image failed: ${message}`);
       }
     }
   };

frontend/src/context/ActionToastContext.jsx

@@ -0,0 +1,105 @@
+import { createContext, useCallback, useEffect, useMemo, useRef, useState } from "react";
+
+const MAX_ACTION_TOASTS = 5;
+const DEFAULT_DURATION_MS = {
+  success: 3500,
+  info: 3500,
+  error: 5000,
+};
+
+export const ActionToastContext = createContext(null);
+
+function createToastId() {
+  if (typeof crypto !== "undefined" && typeof crypto.randomUUID === "function") {
+    return crypto.randomUUID();
+  }
+  return `toast_${Date.now()}_${Math.random().toString(16).slice(2)}`;
+}
+
+export function ActionToastProvider({ children }) {
+  const [toasts, setToasts] = useState([]);
+  const timerByIdRef = useRef(new Map());
+
+  const dismiss = useCallback((id) => {
+    const timer = timerByIdRef.current.get(id);
+    if (timer) {
+      clearTimeout(timer);
+      timerByIdRef.current.delete(id);
+    }
+
+    setToasts((prev) => prev.filter((toast) => toast.id !== id));
+  }, []);
+
+  const pushToast = useCallback(
+    (variant, title, message, options = {}) => {
+      const id = createToastId();
+      const durationMs = options.durationMs ?? DEFAULT_DURATION_MS[variant] ?? 3500;
+      const nextToast = {
+        id,
+        variant,
+        title: String(title || ""),
+        message: String(message || ""),
+        createdAt: Date.now(),
+        durationMs,
+      };
+
+      setToasts((prev) => {
+        const next = [...prev, nextToast];
+        if (next.length > MAX_ACTION_TOASTS) {
+          const oldest = next.shift();
+          if (oldest) {
+            const timer = timerByIdRef.current.get(oldest.id);
+            if (timer) {
+              clearTimeout(timer);
+              timerByIdRef.current.delete(oldest.id);
+            }
+          }
+        }
+        return next;
+      });
+
+      if (durationMs > 0) {
+        const timer = setTimeout(() => dismiss(id), durationMs);
+        timerByIdRef.current.set(id, timer);
+      }
+
+      return id;
+    },
+    [dismiss]
+  );
+
+  const success = useCallback(
+    (title, message, options) => pushToast("success", title, message, options),
+    [pushToast]
+  );
+  const error = useCallback(
+    (title, message, options) => pushToast("error", title, message, options),
+    [pushToast]
+  );
+  const info = useCallback(
+    (title, message, options) => pushToast("info", title, message, options),
+    [pushToast]
+  );
+
+  useEffect(() => {
+    return () => {
+      for (const timer of timerByIdRef.current.values()) {
+        clearTimeout(timer);
+      }
+      timerByIdRef.current.clear();
+    };
+  }, []);
+
+  const value = useMemo(
+    () => ({
+      toasts,
+      success,
+      error,
+      info,
+      dismiss,
+    }),
+    [toasts, success, error, info, dismiss]
+  );
+
+  return <ActionToastContext.Provider value={value}>{children}</ActionToastContext.Provider>;
+}

frontend/src/context/UploadQueueContext.jsx

@@ -0,0 +1,406 @@
+import { createContext, useCallback, useEffect, useMemo, useRef, useState } from "react";
+import { updateItemImage } from "../api/list";
+import {
+  deleteUploadJob,
+  getAllUploadJobs,
+  saveUploadJob,
+} from "../lib/uploadQueueStorage";
+
+const SUCCESS_DISMISS_DELAY_MS = 2500;
+const NETWORK_TIMEOUT_MS = 90000;
+export const IMAGE_UPLOAD_SUCCESS_EVENT = "upload-queue:image-upload-success";
+
+export const UploadQueueContext = createContext({
+  uploads: [],
+  isOnline: true,
+  enqueueImageUpload: () => "",
+  retryUpload: () => {},
+  discardUpload: () => {},
+});
+
+function nowTs() {
+  return Date.now();
+}
+
+function createId() {
+  if (typeof crypto !== "undefined" && typeof crypto.randomUUID === "function") {
+    return crypto.randomUUID();
+  }
+  return `upl_${nowTs()}_${Math.random().toString(16).slice(2)}`;
+}
+
+function classifyUploadError(error, isOnline) {
+  if (!isOnline || error?.code === "ERR_NETWORK" || error?.code === "ECONNABORTED") {
+    return "Network issue. Check your connection and retry.";
+  }
+
+  const responseMessage =
+    error?.response?.data?.error?.message ||
+    error?.response?.data?.message ||
+    error?.message;
+
+  return responseMessage || "Upload failed. Retry or discard.";
+}
+
+function matchesItemKey(a, b) {
+  return (
+    a.householdId === b.householdId &&
+    a.storeId === b.storeId &&
+    String(a.itemName || "").toLowerCase() === String(b.itemName || "").toLowerCase()
+  );
+}
+
+export function UploadQueueProvider({ children }) {
+  const [uploads, setUploads] = useState([]);
+  const [isOnline, setIsOnline] = useState(
+    typeof navigator === "undefined" ? true : navigator.onLine
+  );
+
+  const uploadsRef = useRef([]);
+  const processingRef = useRef(false);
+  const controllerByIdRef = useRef(new Map());
+  const successTimerByIdRef = useRef(new Map());
+
+  useEffect(() => {
+    uploadsRef.current = uploads;
+  }, [uploads]);
+
+  const removeUpload = useCallback((uploadId) => {
+    const timer = successTimerByIdRef.current.get(uploadId);
+    if (timer) {
+      clearTimeout(timer);
+      successTimerByIdRef.current.delete(uploadId);
+    }
+
+    const controller = controllerByIdRef.current.get(uploadId);
+    if (controller) {
+      controller.abort();
+      controllerByIdRef.current.delete(uploadId);
+    }
+
+    setUploads((prev) => prev.filter((upload) => upload.id !== uploadId));
+    deleteUploadJob(uploadId).catch((error) => {
+      console.error("[UploadQueue] Failed to delete upload job:", error);
+    });
+  }, []);
+
+  const updateUpload = useCallback((uploadId, updater) => {
+    let updatedUpload = null;
+
+    setUploads((prev) =>
+      prev.map((upload) => {
+        if (upload.id !== uploadId) {
+          return upload;
+        }
+
+        updatedUpload = {
+          ...updater(upload),
+          updatedAt: nowTs(),
+        };
+        return updatedUpload;
+      })
+    );
+
+    if (updatedUpload) {
+      saveUploadJob(updatedUpload).catch((error) => {
+        console.error("[UploadQueue] Failed to persist upload job:", error);
+      });
+    }
+
+    return updatedUpload;
+  }, []);
+
+  useEffect(() => {
+    let isCancelled = false;
+
+    const hydrateUploads = async () => {
+      try {
+        const stored = await getAllUploadJobs();
+        if (isCancelled) return;
+
+        const hydrated = [];
+        for (const upload of stored) {
+          if (upload.status === "discarded") {
+            deleteUploadJob(upload.id).catch(() => {});
+            continue;
+          }
+
+          if (upload.status === "uploading") {
+            const interrupted = {
+              ...upload,
+              status: "failed",
+              progress: 0,
+              lastError: "Upload interrupted. Retry or discard.",
+              updatedAt: nowTs(),
+            };
+            hydrated.push(interrupted);
+            saveUploadJob(interrupted).catch((error) => {
+              console.error("[UploadQueue] Failed to persist interrupted upload:", error);
+            });
+            continue;
+          }
+
+          hydrated.push(upload);
+        }
+
+        hydrated.sort((a, b) => (a.createdAt || 0) - (b.createdAt || 0));
+        setUploads(hydrated);
+      } catch (error) {
+        console.error("[UploadQueue] Failed to hydrate uploads:", error);
+      }
+    };
+
+    hydrateUploads();
+
+    return () => {
+      isCancelled = true;
+    };
+  }, []);
+
+  useEffect(() => {
+    const onOnline = () => setIsOnline(true);
+    const onOffline = () => setIsOnline(false);
+
+    window.addEventListener("online", onOnline);
+    window.addEventListener("offline", onOffline);
+
+    return () => {
+      window.removeEventListener("online", onOnline);
+      window.removeEventListener("offline", onOffline);
+    };
+  }, []);
+
+  const processNextUpload = useCallback(async () => {
+    if (processingRef.current || !isOnline) {
+      return;
+    }
+
+    const queuedUpload = uploadsRef.current.find((upload) => upload.status === "queued");
+    if (!queuedUpload) {
+      return;
+    }
+
+    processingRef.current = true;
+    const controller = new AbortController();
+    controllerByIdRef.current.set(queuedUpload.id, controller);
+
+    updateUpload(queuedUpload.id, (current) => ({
+      ...current,
+      status: "uploading",
+      progress: 0,
+      lastError: null,
+      attemptCount: (current.attemptCount || 0) + 1,
+    }));
+
+    try {
+      await updateItemImage(
+        queuedUpload.householdId,
+        queuedUpload.storeId,
+        queuedUpload.itemName,
+        queuedUpload.quantity,
+        queuedUpload.fileBlob,
+        {
+          signal: controller.signal,
+          timeoutMs: NETWORK_TIMEOUT_MS,
+          onUploadProgress: (event) => {
+            if (!event?.total || event.total <= 0) {
+              return;
+            }
+            const progress = Math.max(
+              1,
+              Math.min(99, Math.round((event.loaded / event.total) * 100))
+            );
+            updateUpload(queuedUpload.id, (current) => ({
+              ...current,
+              status: "uploading",
+              progress,
+            }));
+          },
+        }
+      );
+
+      updateUpload(queuedUpload.id, (current) => ({
+        ...current,
+        status: "success",
+        progress: 100,
+        lastError: null,
+      }));
+
+      window.dispatchEvent(
+        new CustomEvent(IMAGE_UPLOAD_SUCCESS_EVENT, {
+          detail: {
+            uploadId: queuedUpload.id,
+            householdId: queuedUpload.householdId,
+            storeId: queuedUpload.storeId,
+            itemName: queuedUpload.itemName,
+            localItemId: queuedUpload.localItemId || null,
+          },
+        })
+      );
+    } catch (error) {
+      if (error?.code !== "ERR_CANCELED") {
+        updateUpload(queuedUpload.id, (current) => ({
+          ...current,
+          status: "failed",
+          progress: 0,
+          lastError: classifyUploadError(error, isOnline),
+        }));
+      }
+    } finally {
+      controllerByIdRef.current.delete(queuedUpload.id);
+      processingRef.current = false;
+      setTimeout(() => {
+        void processNextUpload();
+      }, 0);
+    }
+  }, [isOnline, updateUpload]);
+
+  useEffect(() => {
+    void processNextUpload();
+  }, [uploads, isOnline, processNextUpload]);
+
+  useEffect(() => {
+    const activeIds = new Set(uploads.map((upload) => upload.id));
+
+    for (const [id, timer] of successTimerByIdRef.current.entries()) {
+      if (!activeIds.has(id)) {
+        clearTimeout(timer);
+        successTimerByIdRef.current.delete(id);
+      }
+    }
+
+    for (const upload of uploads) {
+      if (upload.status !== "success") {
+        continue;
+      }
+      if (successTimerByIdRef.current.has(upload.id)) {
+        continue;
+      }
+
+      const timer = setTimeout(() => {
+        removeUpload(upload.id);
+      }, SUCCESS_DISMISS_DELAY_MS);
+      successTimerByIdRef.current.set(upload.id, timer);
+    }
+  }, [uploads, removeUpload]);
+
+  useEffect(() => {
+    return () => {
+      for (const timer of successTimerByIdRef.current.values()) {
+        clearTimeout(timer);
+      }
+      successTimerByIdRef.current.clear();
+
+      for (const controller of controllerByIdRef.current.values()) {
+        controller.abort();
+      }
+      controllerByIdRef.current.clear();
+    };
+  }, []);
+
+  const enqueueImageUpload = useCallback(
+    ({
+      householdId,
+      storeId,
+      itemName,
+      quantity,
+      fileBlob,
+      fileName,
+      fileType,
+      fileSize,
+      source,
+      localItemId = null,
+    }) => {
+      const upload = {
+        id: createId(),
+        kind: "item_image_upload",
+        status: "queued",
+        householdId,
+        storeId,
+        itemName,
+        quantity,
+        fileBlob,
+        fileName,
+        fileType,
+        fileSize,
+        source,
+        localItemId,
+        progress: 0,
+        attemptCount: 0,
+        lastError: null,
+        createdAt: nowTs(),
+        updatedAt: nowTs(),
+      };
+
+      const toRemove = [];
+
+      setUploads((prev) => {
+        const next = [];
+
+        for (const current of prev) {
+          const isDedupCandidate =
+            current.kind === "item_image_upload" &&
+            ["queued", "uploading", "failed"].includes(current.status) &&
+            matchesItemKey(current, upload);
+
+          if (isDedupCandidate) {
+            toRemove.push(current.id);
+            continue;
+          }
+
+          next.push(current);
+        }
+
+        next.push(upload);
+        return next;
+      });
+
+      for (const uploadId of toRemove) {
+        const activeController = controllerByIdRef.current.get(uploadId);
+        if (activeController) {
+          activeController.abort();
+        }
+        removeUpload(uploadId);
+      }
+
+      saveUploadJob(upload).catch((error) => {
+        console.error("[UploadQueue] Failed to save queued upload:", error);
+      });
+
+      return upload.id;
+    },
+    [removeUpload]
+  );
+
+  const retryUpload = useCallback(
+    (uploadId) => {
+      updateUpload(uploadId, (upload) => ({
+        ...upload,
+        status: "queued",
+        progress: 0,
+        lastError: null,
+      }));
+    },
+    [updateUpload]
+  );
+
+  const discardUpload = useCallback(
+    (uploadId) => {
+      removeUpload(uploadId);
+    },
+    [removeUpload]
+  );
+
+  const value = useMemo(
+    () => ({
+      uploads,
+      isOnline,
+      enqueueImageUpload,
+      retryUpload,
+      discardUpload,
+    }),
+    [uploads, isOnline, enqueueImageUpload, retryUpload, discardUpload]
+  );
+
+  return <UploadQueueContext.Provider value={value}>{children}</UploadQueueContext.Provider>;
+}

frontend/src/hooks/useActionToast.js

@@ -0,0 +1,10 @@
+import { useContext } from "react";
+import { ActionToastContext } from "../context/ActionToastContext";
+
+export default function useActionToast() {
+  const context = useContext(ActionToastContext);
+  if (!context) {
+    throw new Error("useActionToast must be used within an ActionToastProvider");
+  }
+  return context;
+}

frontend/src/hooks/useUploadQueue.js

@@ -0,0 +1,6 @@
+import { useContext } from "react";
+import { UploadQueueContext } from "../context/UploadQueueContext";
+
+export default function useUploadQueue() {
+  return useContext(UploadQueueContext);
+}

frontend/src/lib/getApiErrorMessage.js

@@ -0,0 +1,8 @@
+export default function getApiErrorMessage(error, fallbackMessage = "Unexpected error") {
+  return (
+    error?.response?.data?.error?.message ||
+    error?.response?.data?.message ||
+    error?.message ||
+    fallbackMessage
+  );
+}

frontend/src/lib/uploadQueueStorage.js

@@ -0,0 +1,58 @@
+const DB_NAME = "costco-upload-queue";
+const DB_VERSION = 1;
+const STORE_NAME = "uploads";
+
+function openUploadQueueDb() {
+  return new Promise((resolve, reject) => {
+    if (typeof indexedDB === "undefined") {
+      reject(new Error("IndexedDB is not available"));
+      return;
+    }
+
+    const request = indexedDB.open(DB_NAME, DB_VERSION);
+
+    request.onupgradeneeded = () => {
+      const db = request.result;
+      if (!db.objectStoreNames.contains(STORE_NAME)) {
+        db.createObjectStore(STORE_NAME, { keyPath: "id" });
+      }
+    };
+
+    request.onsuccess = () => resolve(request.result);
+    request.onerror = () => reject(request.error || new Error("Failed to open upload DB"));
+  });
+}
+
+function withStore(mode, handler) {
+  return openUploadQueueDb().then(
+    (db) =>
+      new Promise((resolve, reject) => {
+        const tx = db.transaction(STORE_NAME, mode);
+        const store = tx.objectStore(STORE_NAME);
+        const request = handler(store);
+
+        tx.oncomplete = () => {
+          db.close();
+          resolve(request?.result);
+        };
+        tx.onerror = () => {
+          db.close();
+          reject(tx.error || new Error("IndexedDB transaction failed"));
+        };
+      })
+  );
+}
+
+export function getAllUploadJobs() {
+  return withStore("readonly", (store) => store.getAll()).then((rows) =>
+    Array.isArray(rows) ? rows : []
+  );
+}
+
+export function saveUploadJob(job) {
+  return withStore("readwrite", (store) => store.put(job));
+}
+
+export function deleteUploadJob(id) {
+  return withStore("readwrite", (store) => store.delete(id));
+}

frontend/src/pages/AdminPanel.jsx

@@ -2,17 +2,24 @@ import { useEffect, useState } from "react";
 import { getAllUsers, updateRole } from "../api/users";
 import StoreManagement from "../components/admin/StoreManagement";
 import UserRoleCard from "../components/common/UserRoleCard";
+import useActionToast from "../hooks/useActionToast";
+import getApiErrorMessage from "../lib/getApiErrorMessage";
 import "../styles/UserRoleCard.css";
 import "../styles/pages/AdminPanel.css";
 
 export default function AdminPanel() {
+  const toast = useActionToast();
   const [users, setUsers] = useState([]);
   const [activeTab, setActiveTab] = useState("users");
 
   async function loadUsers() {
+    try {
       const allUsers = await getAllUsers();
-    console.log("Users found:", users);
       setUsers(allUsers.data);
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to load users");
+      toast.error("Load users failed", `Load users failed: ${message}`);
+    }
   }
 
   useEffect(() => {
@@ -20,10 +27,22 @@ export default function AdminPanel() {
   }, []);
 
   const changeRole = async (id, role) => {
+    const selectedUser = users.find((user) => user.id === id);
+    const username = selectedUser?.username || `user #${id}`;
+
+    try {
       const updated = await updateRole(id, role);
-    if (updated.status !== 200) return;
-    loadUsers();
+      if (updated.status !== 200) {
+        toast.error("Update role failed", "Update role failed: unexpected response");
+        return;
       }
+      toast.success("Updated user role", `Updated role for ${username} to ${role}`);
+      loadUsers();
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to update user role");
+      toast.error("Update role failed", `Update role failed: ${message}`);
+    }
+  };
 
   return (
     <div className="admin-panel-body">
@@ -62,5 +81,5 @@ export default function AdminPanel() {
         </div>
       </div>
     </div>
-  )
+  );
 }

frontend/src/pages/GroceryList.jsx

@@ -26,7 +26,9 @@ import { HouseholdContext } from "../context/HouseholdContext";
 import { IMAGE_UPLOAD_SUCCESS_EVENT } from "../context/UploadQueueContext";
 import { SettingsContext } from "../context/SettingsContext";
 import { StoreContext } from "../context/StoreContext";
+import useActionToast from "../hooks/useActionToast";
 import useUploadQueue from "../hooks/useUploadQueue";
+import getApiErrorMessage from "../lib/getApiErrorMessage";
 import "../styles/pages/GroceryList.css";
 import { findSimilarItems } from "../utils/stringSimilarity";
 
@@ -37,6 +39,7 @@ export default function GroceryList() {
   const { activeHousehold } = useContext(HouseholdContext);
   const { activeStore, stores, loading: storeLoading } = useContext(StoreContext);
   const { settings } = useContext(SettingsContext);
+  const toast = useActionToast();
   const { enqueueImageUpload } = useUploadQueue();
   const navigate = useNavigate();
 
@@ -255,6 +258,7 @@ export default function GroceryList() {
 
   // === Item Addition Handlers ===
   const handleAdd = useCallback(async (itemName, quantity, addedForUserId = null) => {
+    try {
       const normalizedItemName = itemName.trim().toLowerCase();
       if (!normalizedItemName) return;
       if (!activeHousehold?.id || !activeStore?.id) return;
@@ -289,6 +293,9 @@ export default function GroceryList() {
         skipLookup: shouldSkipLookup,
         addedForUserId
       });
+    } catch (error) {
+      console.error("Failed to process add item flow:", error);
+    }
   }, [activeHousehold?.id, activeStore?.id, items, recentlyBoughtItems, buttonText]);
 
 
@@ -325,6 +332,7 @@ export default function GroceryList() {
       });
       setShowConfirmAddExisting(true);
     } else if (existingItem) {
+      try {
         await addItem(
           activeHousehold.id,
           activeStore.id,
@@ -336,15 +344,21 @@ export default function GroceryList() {
         );
         setSuggestions([]);
         setButtonText("Add Item");
+        toast.success("Added item", `Added item ${itemName}`);
 
         // Reload lists to reflect the changes
         await loadItems();
         await loadRecentlyBought();
+      } catch (error) {
+        const message = getApiErrorMessage(error, "Failed to add item");
+        toast.error("Add item failed", `Add item failed: ${message}`);
+        throw error;
+      }
     } else {
       setPendingItem({ itemName, quantity, addedForUserId });
       setShowAddDetailsModal(true);
     }
-  }, [activeHousehold?.id, activeStore?.id, loadItems]);
+  }, [activeHousehold?.id, activeStore?.id, loadItems, loadRecentlyBought, toast]);
 
 
   // === Similar Item Modal Handlers ===
@@ -407,11 +421,14 @@ export default function GroceryList() {
 
       setSuggestions([]);
       setButtonText("Add Item");
+      toast.success("Updated item quantity", `Updated item ${itemName}`);
     } catch (error) {
       console.error("Failed to update item:", error);
+      const message = getApiErrorMessage(error, "Failed to update item");
+      toast.error("Update item failed", `Update item failed: ${message}`);
       await loadItems();
     }
-  }, []);
+  }, [activeHousehold?.id, activeStore?.id, confirmAddExistingData, loadItems, toast]);
 
 
   // === Add Details Modal Handlers ===
@@ -434,6 +451,7 @@ export default function GroceryList() {
       if (classification) {
         // Apply classification if provided
         await updateItemWithClassification(activeHousehold.id, activeStore.id, pendingItem.itemName, pendingItem.quantity, classification);
+        toast.success("Updated item classification", `Updated classification for ${pendingItem.itemName}`);
       }
 
       // Fetch the newly added item
@@ -448,6 +466,7 @@ export default function GroceryList() {
       // Add to state
       if (newItem) {
         setItems(prevItems => [...prevItems, newItem]);
+        toast.success("Added item", `Added item ${newItem.item_name || pendingItem.itemName}`);
 
         if (imageFile) {
           enqueueImageUpload({
@@ -462,13 +481,15 @@ export default function GroceryList() {
             source: "add_details",
             localItemId: newItem.id,
           });
+          toast.info("Queued image upload", `Queued image upload for ${newItem.item_name || pendingItem.itemName}`);
         }
       }
     } catch (error) {
       console.error("Failed to add item:", error);
-      alert("Failed to add item. Please try again.");
+      const message = getApiErrorMessage(error, "Failed to add item");
+      toast.error("Add item failed", `Add item failed: ${message}`);
     }
-  }, [activeHousehold?.id, activeStore?.id, pendingItem, enqueueImageUpload]);
+  }, [activeHousehold?.id, activeStore?.id, pendingItem, enqueueImageUpload, toast]);
 
   const handleAddDetailsSkip = useCallback(async () => {
     if (!pendingItem) return;
@@ -496,12 +517,14 @@ export default function GroceryList() {
 
       if (newItem) {
         setItems(prevItems => [...prevItems, newItem]);
+        toast.success("Added item", `Added item ${newItem.item_name || pendingItem.itemName}`);
       }
     } catch (error) {
       console.error("Failed to add item:", error);
-      alert("Failed to add item. Please try again.");
+      const message = getApiErrorMessage(error, "Failed to add item");
+      toast.error("Add item failed", `Add item failed: ${message}`);
     }
-  }, [activeHousehold?.id, activeStore?.id, pendingItem]);
+  }, [activeHousehold?.id, activeStore?.id, pendingItem, toast]);
 
 
   const handleAddDetailsCancel = useCallback(() => {
@@ -519,23 +542,29 @@ export default function GroceryList() {
     const item = items.find(i => i.id === id);
     if (!item) return;
 
+    try {
       await markBought(activeHousehold.id, activeStore.id, item.item_name, quantity, true);
 
       // If buying full quantity, remove from list
       if (quantity >= item.quantity) {
-      setItems(prevItems => prevItems.filter(item => item.id !== id));
+        setItems(prevItems => prevItems.filter((existingItem) => existingItem.id !== id));
       } else {
         // If partial, fetch updated item
         const response = await getItemByName(activeHousehold.id, activeStore.id, item.item_name);
         const updatedItem = response.data;
 
-      setItems(prevItems =>
-        prevItems.map(i => i.id === id ? updatedItem : i)
+        setItems((prevItems) =>
+          prevItems.map((existingItem) => (existingItem.id === id ? updatedItem : existingItem))
         );
       }
 
+      toast.success("Marked item bought", `Marked item ${item.item_name} as bought`);
       loadRecentlyBought();
-  }, [activeHousehold?.id, activeStore?.id, items]);
+    } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to mark item as bought");
+      toast.error("Mark item bought failed", `Mark item bought failed: ${message}`);
+    }
+  }, [activeHousehold?.id, activeStore?.id, items, toast]);
 
   const handleImageAdded = useCallback(async (id, itemName, quantity, imageFile, source = "add_image_modal") => {
     if (!activeHousehold?.id || !activeStore?.id) return;
@@ -554,11 +583,13 @@ export default function GroceryList() {
         source,
         localItemId: id,
       });
+      toast.info("Queued image upload", `Queued image upload for ${itemName}`);
     } catch (error) {
       console.error("Failed to add image:", error);
-      alert("Failed to add image. Please try again.");
+      const message = getApiErrorMessage(error, "Failed to add image");
+      toast.error("Add image failed", `Add image failed: ${message}`);
     }
-  }, [activeHousehold?.id, activeStore?.id, enqueueImageUpload]);
+  }, [activeHousehold?.id, activeStore?.id, enqueueImageUpload, toast]);
 
 
   const handleLongPress = useCallback(async (item) => {
@@ -605,11 +636,14 @@ export default function GroceryList() {
           item.id === id ? { ...item, ...updatedItem } : item
         )
       );
+      toast.success("Updated item", `Updated item ${itemName}`);
     } catch (error) {
       console.error("Failed to update item:", error);
+      const message = getApiErrorMessage(error, "Failed to update item");
+      toast.error("Update item failed", `Update item failed: ${message}`);
       throw error;
     }
-  }, [activeHousehold?.id, activeStore?.id]);
+  }, [activeHousehold?.id, activeStore?.id, toast]);
 
 
   const handleEditCancel = useCallback(() => {

frontend/src/pages/InviteLink.jsx

@@ -0,0 +1,158 @@
+import { useContext, useEffect, useMemo, useState } from "react";
+import { Link, useNavigate, useParams } from "react-router-dom";
+import { acceptInviteLink, getInviteLinkSummary } from "../api/households";
+import { AuthContext } from "../context/AuthContext";
+import { HouseholdContext } from "../context/HouseholdContext";
+import useActionToast from "../hooks/useActionToast";
+import getApiErrorMessage from "../lib/getApiErrorMessage";
+import "../styles/pages/InviteLink.css";
+
+function humanizeStatus(code) {
+  switch (code) {
+    case "ALREADY_MEMBER":
+      return "You are already a member of this group.";
+    case "PENDING":
+      return "Your join request is already pending approval.";
+    case "REVOKED":
+      return "This invite link has been revoked.";
+    case "EXPIRED":
+      return "This invite link has expired.";
+    case "USED":
+      return "This invite link has already been used.";
+    case "NOT_ACCEPTING":
+      return "This group is not accepting new members right now.";
+    default:
+      return "";
+  }
+}
+
+export default function InviteLink() {
+  const { token } = useParams();
+  const navigate = useNavigate();
+  const { token: authToken } = useContext(AuthContext);
+  const { refreshHouseholds } = useContext(HouseholdContext);
+  const toast = useActionToast();
+  const [loading, setLoading] = useState(true);
+  const [joining, setJoining] = useState(false);
+  const [link, setLink] = useState(null);
+  const [error, setError] = useState("");
+  const [message, setMessage] = useState("");
+
+  useEffect(() => {
+    const loadSummary = async () => {
+      if (!token) return;
+      setLoading(true);
+      setError("");
+      setMessage("");
+
+      try {
+        const response = await getInviteLinkSummary(token);
+        setLink(response.data.link);
+      } catch (err) {
+        setError(err.response?.data?.error?.message || "Invite link not found");
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    loadSummary();
+  }, [token]);
+
+  const blockedCode = useMemo(() => {
+    if (!link) return null;
+    if (link.viewerStatus === "ALREADY_MEMBER") return "ALREADY_MEMBER";
+    if (link.viewerStatus === "PENDING") return "PENDING";
+    if (link.status === "REVOKED") return "REVOKED";
+    if (link.status === "EXPIRED") return "EXPIRED";
+    if (link.status === "USED") return "USED";
+    if (link.active_policy === "NOT_ACCEPTING") return "NOT_ACCEPTING";
+    return null;
+  }, [link]);
+
+  const handleJoin = async () => {
+    if (!token) return;
+    setJoining(true);
+    setError("");
+    setMessage("");
+
+    try {
+      const response = await acceptInviteLink(token);
+      const result = response.data.result;
+      if (result.status === "JOINED") {
+        setMessage(`Joined ${result.group.name}. Redirecting...`);
+        toast.success("Joined group", `Joined group ${result.group.name}`);
+      } else if (result.status === "PENDING") {
+        setMessage(`Request sent to join ${result.group.name}. Redirecting...`);
+        toast.info("Join request sent", `Request sent for ${result.group.name}`);
+      } else {
+        setMessage(`You are already a member of ${result.group.name}. Redirecting...`);
+        toast.info("Already a member", `Already a member of ${result.group.name}`);
+      }
+
+      await refreshHouseholds();
+      window.setTimeout(() => navigate("/"), 1200);
+    } catch (err) {
+      const message = getApiErrorMessage(err, "Failed to process invite");
+      setError(message);
+      toast.error("Join invite failed", `Join invite failed: ${message}`);
+    } finally {
+      setJoining(false);
+    }
+  };
+
+  if (loading) {
+    return (
+      <div className="invite-link-page">
+        <div className="invite-card">
+          <h1>Invite Link</h1>
+          <p>Loading invite details...</p>
+        </div>
+      </div>
+    );
+  }
+
+  if (error || !link) {
+    return (
+      <div className="invite-link-page">
+        <div className="invite-card">
+          <h1>Invite Link</h1>
+          <p className="invite-error">{error || "Invite link not found"}</p>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="invite-link-page">
+      <div className="invite-card">
+        <h1>Join {link.group_name}</h1>
+        <p className="invite-meta">Invite status: {link.status}</p>
+
+        {message && <p className="invite-success">{message}</p>}
+        {!message && blockedCode && <p className="invite-error">{humanizeStatus(blockedCode)}</p>}
+        {!message && !blockedCode && !authToken && (
+          <p className="invite-meta">Sign in or register to join this group.</p>
+        )}
+
+        {!message && !authToken && (
+          <div className="invite-actions">
+            <Link className="invite-btn" to={`/login?next=/invite/${link.token}`}>
+              Sign In
+            </Link>
+            <Link className="invite-btn invite-btn-secondary" to={`/register?next=/invite/${link.token}`}>
+              Register
+            </Link>
+          </div>
+        )}
+
+        {!message && authToken && !blockedCode && (
+          <div className="invite-actions">
+            <button className="invite-btn" onClick={handleJoin} disabled={joining}>
+              {joining ? "Joining..." : "Join Group"}
+            </button>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}

frontend/src/pages/Login.jsx

@@ -1,13 +1,17 @@
 import { useContext, useState } from "react";
-import { Link } from "react-router-dom";
+import { Link, useNavigate } from "react-router-dom";
 import { loginRequest } from "../api/auth";
 import ErrorMessage from "../components/common/ErrorMessage";
 import FormInput from "../components/common/FormInput";
 import { AuthContext } from "../context/AuthContext";
+import useActionToast from "../hooks/useActionToast";
+import getApiErrorMessage from "../lib/getApiErrorMessage";
 import "../styles/pages/Login.css";
 
 export default function Login() {
+  const navigate = useNavigate();
   const { login } = useContext(AuthContext);
+  const toast = useActionToast();
   const [username, setUsername] = useState("");
   const [password, setPassword] = useState("");
   const [showPassword, setShowPassword] = useState(false);
@@ -20,9 +24,12 @@ export default function Login() {
     try {
       const data = await loginRequest(username, password);
       login(data);
-      window.location.href = "/";
+      toast.success("Logged in", `Welcome back ${data?.username || username}`);
+      navigate("/");
     } catch (err) {
-      setError(err.response?.data?.message || "Login failed");
+      const message = getApiErrorMessage(err, "Login failed");
+      setError(message);
+      toast.error("Login failed", `Login failed: ${message}`);
     }
   };
 

frontend/src/pages/Register.jsx

@@ -5,11 +5,14 @@ import { checkIfUserExists } from "../api/users";
 import ErrorMessage from "../components/common/ErrorMessage";
 import FormInput from "../components/common/FormInput";
 import { AuthContext } from "../context/AuthContext";
+import useActionToast from "../hooks/useActionToast";
+import getApiErrorMessage from "../lib/getApiErrorMessage";
 import "../styles/pages/Register.css";
 
 export default function Register() {
   const navigate = useNavigate();
   const { login } = useContext(AuthContext);
+  const toast = useActionToast();
 
   const [name, setName] = useState("");
   const [username, setUsername] = useState("");
@@ -47,12 +50,16 @@ export default function Register() {
 
     try {
       await registerRequest(username, password, name);
+      toast.success("Registered account", `Created account for ${username}`);
       const data = await loginRequest(username, password);
       login(data);
+      toast.success("Logged in", `Welcome ${data?.username || username}`);
       setSuccess("Account created! Redirecting to the grocery list...");
       setTimeout(() => navigate("/"), 2000);
     } catch (err) {
-      setError(err.response?.data?.message || "Registration failed");
+      const message = getApiErrorMessage(err, "Registration failed");
+      setError(message);
+      toast.error("Registration failed", `Registration failed: ${message}`);
       setTimeout(() => setError(""), 1000);
     }
   };

frontend/src/pages/Settings.jsx

@@ -1,11 +1,14 @@
 import { useContext, useEffect, useRef, useState } from "react";
 import { changePassword, getCurrentUser, updateCurrentUser } from "../api/users";
 import { SettingsContext } from "../context/SettingsContext";
+import useActionToast from "../hooks/useActionToast";
+import getApiErrorMessage from "../lib/getApiErrorMessage";
 import "../styles/pages/Settings.css";
 
 
 export default function Settings() {
   const { settings, updateSettings, resetSettings } = useContext(SettingsContext);
+  const toast = useActionToast();
   const [activeTab, setActiveTab] = useState("appearance");
   const tabsRef = useRef(null);
   const [showLeftArrow, setShowLeftArrow] = useState(false);
@@ -75,11 +78,14 @@ export default function Settings() {
     try {
       await updateCurrentUser(displayName);
       setAccountMessage({ type: "success", text: "Display name updated successfully!" });
+      toast.success("Updated display name", `Updated display name to ${displayName}`);
     } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to update display name");
       setAccountMessage({
         type: "error",
-        text: error.response?.data?.error || "Failed to update display name"
+        text: message
       });
+      toast.error("Update display name failed", `Update display name failed: ${message}`);
     } finally {
       setLoadingProfile(false);
     }
@@ -105,14 +111,17 @@ export default function Settings() {
     try {
       await changePassword(currentPassword, newPassword);
       setAccountMessage({ type: "success", text: "Password changed successfully!" });
+      toast.success("Changed password", "Changed password successfully");
       setCurrentPassword("");
       setNewPassword("");
       setConfirmPassword("");
     } catch (error) {
+      const message = getApiErrorMessage(error, "Failed to change password");
       setAccountMessage({
         type: "error",
-        text: error.response?.data?.error || "Failed to change password"
+        text: message
       });
+      toast.error("Change password failed", `Change password failed: ${message}`);
     } finally {
       setLoadingPassword(false);
     }

frontend/src/styles/components/AddItemForm.css

@@ -33,7 +33,7 @@
 
 .add-item-form-assignee-toggle {
   flex: 0 0 auto;
-  width: 134px;
+  width: 112px;
   margin: 0;
 }
 
@@ -201,7 +201,7 @@
   }
 
   .add-item-form-assignee-toggle {
-    width: 120px;
+    width: 100px;
   }
 
   .add-item-form-quantity-control {

frontend/src/styles/components/ConfirmSlideModal.css

@@ -0,0 +1,144 @@
+.confirm-slide-overlay {
+  position: fixed;
+  inset: 0;
+  z-index: var(--z-modal);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: var(--spacing-md);
+  background: var(--modal-backdrop-bg);
+}
+
+.confirm-slide-modal {
+  width: 100%;
+  max-width: 420px;
+  background: var(--modal-bg);
+  border: var(--border-width-thin) solid var(--color-border-light);
+  border-radius: var(--border-radius-xl);
+  box-shadow: var(--shadow-xl);
+  padding: var(--spacing-lg);
+}
+
+.confirm-slide-title {
+  margin: 0;
+  font-size: var(--font-size-xl);
+  color: var(--color-text-primary);
+}
+
+.confirm-slide-description {
+  margin: var(--spacing-sm) 0 0;
+  font-size: var(--font-size-sm);
+  color: var(--color-text-secondary);
+}
+
+.confirm-slide-track-wrap {
+  margin-top: var(--spacing-lg);
+}
+
+.confirm-slide-helper {
+  font-size: var(--font-size-xs);
+  color: var(--color-text-secondary);
+}
+
+.confirm-slide-track {
+  position: relative;
+  margin-top: var(--spacing-sm);
+  height: 40px;
+  border-radius: 999px;
+  border: var(--border-width-thin) solid var(--color-border-medium);
+  background: var(--color-bg-body);
+  overflow: hidden;
+  user-select: none;
+}
+
+.confirm-slide-track.is-active {
+  border-color: var(--color-primary);
+  background: var(--color-primary-light);
+}
+
+.confirm-slide-progress {
+  position: absolute;
+  inset: 0 auto 0 0;
+  border-radius: 999px;
+  background: rgba(30, 144, 255, 0.2);
+  min-width: 40px;
+  z-index: 1;
+  pointer-events: none;
+}
+
+.confirm-slide-ready {
+  position: absolute;
+  left: 50%;
+  top: 50%;
+  transform: translate(-50%, -50%) scale(0.9);
+  opacity: 0;
+  z-index: 2;
+  font-size: var(--font-size-xs);
+  font-weight: var(--font-weight-semibold);
+  color: var(--color-primary);
+  white-space: nowrap;
+  transition: var(--transition-fast);
+  pointer-events: none;
+}
+
+.confirm-slide-ready.is-visible {
+  opacity: 1;
+  transform: translate(-50%, -50%) scale(1);
+}
+
+.confirm-slide-handle {
+  position: absolute;
+  top: 0;
+  left: 0;
+  z-index: 3;
+  width: 40px;
+  height: 40px;
+  margin: 0;
+  padding: 0;
+  border-radius: 50%;
+  border: var(--border-width-thin) solid var(--color-primary);
+  background: var(--modal-bg);
+  color: var(--color-text-primary);
+  font-size: 1.1rem;
+  font-weight: var(--font-weight-semibold);
+  line-height: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: grab;
+  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
+  touch-action: none;
+}
+
+.confirm-slide-handle:active {
+  cursor: grabbing;
+}
+
+.confirm-slide-handle.is-active {
+  border-color: var(--color-primary-dark);
+  box-shadow: 0 0 0 2px rgba(30, 144, 255, 0.2);
+}
+
+.confirm-slide-footer {
+  margin-top: var(--spacing-lg);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--spacing-md);
+}
+
+.confirm-slide-label {
+  font-size: var(--font-size-xs);
+  color: var(--color-text-secondary);
+}
+
+.confirm-slide-cancel {
+  width: auto;
+  margin: 0;
+}
+
+@media (max-width: 480px) {
+  .confirm-slide-modal {
+    padding: var(--spacing-md);
+  }
+}

frontend/src/styles/components/StoreTabs.css

@@ -6,9 +6,11 @@
 
 .store-tabs-container {
   display: flex;
+  justify-content: center;
   gap: 0.25rem;
   overflow-x: auto;
   padding: 0.5rem 1rem 0;
+  width: 100%;
 }
 
 .store-tabs-container::-webkit-scrollbar {
@@ -23,6 +25,7 @@
 .store-tab {
   display: flex;
   align-items: center;
+  justify-content: center;
   gap: 0.5rem;
   padding: 0.75rem 1.5rem;
   background: transparent;
@@ -34,6 +37,7 @@
   cursor: pointer;
   transition: all 0.2s ease;
   white-space: nowrap;
+  text-align: center;
 }
 
 .store-tab:hover {

frontend/src/styles/components/ToggleButtonGroup.css

@@ -56,6 +56,12 @@
   font-weight: var(--font-weight-semibold);
 }
 
+.tbg-button.tbg-size-xxs {
+  padding: 0.25rem 0.38rem;
+  font-size: 0.68rem;
+  font-weight: var(--font-weight-semibold);
+}
+
 .tbg-button.is-active {
   color: var(--color-text-inverse);
   background: transparent;

frontend/src/styles/components/UploadToaster.css

@@ -0,0 +1,123 @@
+.upload-toaster {
+  position: fixed;
+  right: 1rem;
+  bottom: 1rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.6rem;
+  z-index: 1200;
+  max-width: min(90vw, 22rem);
+}
+
+.upload-toast {
+  background: var(--color-bg-surface);
+  color: var(--color-text-primary);
+  border: 1px solid var(--color-border-light);
+  border-radius: 10px;
+  padding: 0.7rem 0.8rem;
+  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
+}
+
+.upload-toast-title {
+  font-size: 0.95rem;
+  font-weight: 700;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.upload-toast-status {
+  margin-top: 0.15rem;
+  font-size: 0.82rem;
+  color: var(--color-text-secondary);
+}
+
+.upload-toast-progress {
+  margin-top: 0.45rem;
+  width: 100%;
+  height: 6px;
+  border-radius: 999px;
+  background: var(--color-border-light);
+  overflow: hidden;
+}
+
+.upload-toast-progress-fill {
+  height: 100%;
+  width: 0;
+  background: var(--color-primary);
+  transition: width 0.2s ease;
+}
+
+.upload-toast-actions {
+  margin-top: 0.55rem;
+  display: flex;
+  gap: 0.4rem;
+}
+
+.upload-toast-actions button {
+  border: 1px solid var(--color-border-light);
+  background: var(--color-bg-surface);
+  color: var(--color-text-primary);
+  border-radius: 6px;
+  padding: 0.3rem 0.55rem;
+  font-size: 0.8rem;
+  cursor: pointer;
+}
+
+.upload-toast-actions button:hover {
+  border-color: var(--color-primary);
+  color: var(--color-primary);
+}
+
+.upload-toast-success .upload-toast-progress-fill {
+  background: var(--color-success);
+}
+
+.upload-toast-failed .upload-toast-progress-fill {
+  background: var(--color-danger);
+}
+
+.action-toast {
+  border-left: 4px solid var(--color-primary);
+}
+
+.action-toast-header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.action-toast-close {
+  border: none;
+  background: transparent;
+  color: var(--color-text-secondary);
+  font-size: 0.95rem;
+  line-height: 1;
+  cursor: pointer;
+  padding: 0.1rem 0.2rem;
+}
+
+.action-toast-close:hover {
+  color: var(--color-text-primary);
+}
+
+.action-toast-success {
+  border-left-color: var(--color-success);
+}
+
+.action-toast-error {
+  border-left-color: var(--color-danger);
+}
+
+.action-toast-info {
+  border-left-color: var(--color-primary);
+}
+
+@media (max-width: 640px) {
+  .upload-toaster {
+    right: 0.6rem;
+    left: 0.6rem;
+    max-width: none;
+  }
+}

frontend/src/styles/components/manage/ManageHousehold.css

@@ -85,6 +85,78 @@
   letter-spacing: 0.5px;
 }
 
+.section-error {
+  color: var(--danger);
+  margin: 0 0 0.75rem 0;
+}
+
+.manage-household-join-policy-toggle {
+  margin-bottom: 1rem;
+}
+
+.invite-controls {
+  display: flex;
+  gap: 0.8rem;
+  align-items: end;
+  flex-wrap: wrap;
+  margin-bottom: 1rem;
+}
+
+.invite-controls label {
+  display: flex;
+  flex-direction: column;
+  gap: 0.3rem;
+  color: var(--text-primary);
+  font-size: 0.9rem;
+}
+
+.invite-controls select {
+  min-width: 120px;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  padding: 0.45rem 0.6rem;
+  background: var(--background);
+  color: var(--text-primary);
+}
+
+.invite-links-list {
+  display: flex;
+  flex-direction: column;
+  gap: 0.8rem;
+}
+
+.invite-link-card {
+  border: 1px solid var(--border);
+  background: var(--background);
+  border-radius: 8px;
+  padding: 0.9rem;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.75rem;
+  flex-wrap: wrap;
+}
+
+.invite-link-token,
+.invite-link-meta {
+  margin: 0;
+}
+
+.invite-link-token {
+  font-weight: 600;
+}
+
+.invite-link-meta {
+  color: var(--text-secondary);
+  font-size: 0.85rem;
+}
+
+.invite-link-actions {
+  display: flex;
+  gap: 0.5rem;
+  flex-wrap: wrap;
+}
+
 /* Members Section */
 .members-list {
   display: flex;
@@ -244,4 +316,23 @@
     text-align: center;
     width: 100%;
   }
+
+  .invite-controls {
+    flex-direction: column;
+    align-items: stretch;
+  }
+
+  .invite-controls label,
+  .invite-controls select,
+  .invite-controls button {
+    width: 100%;
+  }
+
+  .invite-link-actions {
+    width: 100%;
+  }
+
+  .invite-link-actions button {
+    flex: 1;
+  }
 }

frontend/src/styles/pages/InviteLink.css

@@ -0,0 +1,77 @@
+.invite-link-page {
+  min-height: calc(100vh - 80px);
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  padding: 2rem 1rem;
+}
+
+.invite-card {
+  width: 100%;
+  max-width: 540px;
+  border: 1px solid var(--border);
+  background: var(--card-bg);
+  border-radius: 12px;
+  padding: 1.5rem;
+  display: flex;
+  flex-direction: column;
+  gap: 0.9rem;
+}
+
+.invite-card h1 {
+  margin: 0;
+  font-size: 1.5rem;
+}
+
+.invite-meta {
+  margin: 0;
+  color: var(--text-secondary);
+}
+
+.invite-error {
+  margin: 0;
+  color: var(--danger);
+}
+
+.invite-success {
+  margin: 0;
+  color: var(--success, #2e7d32);
+}
+
+.invite-actions {
+  display: flex;
+  gap: 0.75rem;
+  flex-wrap: wrap;
+}
+
+.invite-btn {
+  border: none;
+  border-radius: 8px;
+  padding: 0.65rem 1rem;
+  background: var(--primary);
+  color: #fff;
+  text-decoration: none;
+  cursor: pointer;
+  font-weight: 600;
+}
+
+.invite-btn:disabled {
+  opacity: 0.6;
+  cursor: not-allowed;
+}
+
+.invite-btn-secondary {
+  background: var(--card-hover);
+  color: var(--text-primary);
+}
+
+@media (max-width: 640px) {
+  .invite-card {
+    padding: 1.1rem;
+  }
+
+  .invite-btn {
+    width: 100%;
+    text-align: center;
+  }
+}

frontend/tests/auth-smoke.spec.ts

@@ -0,0 +1,10 @@
+import { expect, test } from "@playwright/test";
+
+test("redirects unauthenticated users to login", async ({ page }) => {
+  await page.goto("/");
+
+  await expect(page).toHaveURL(/\/login$/);
+  await expect(page.getByRole("heading", { name: "Login" })).toBeVisible();
+  await expect(page.getByPlaceholder("Username")).toBeVisible();
+  await expect(page.getByPlaceholder("Password")).toBeVisible();
+});

frontend/tests/toast-notifications.spec.ts

@@ -0,0 +1,272 @@
+import { expect, test } from "@playwright/test";
+
+function seedAuthStorage(page: import("@playwright/test").Page) {
+  return page.addInitScript(() => {
+    localStorage.setItem("token", "test-token");
+    localStorage.setItem("userId", "1");
+    localStorage.setItem("role", "admin");
+    localStorage.setItem("username", "toast-user");
+  });
+}
+
+async function mockConfig(page: import("@playwright/test").Page) {
+  await page.route("**/config", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        maxFileSizeMB: 20,
+        maxImageDimension: 800,
+        imageQuality: 85,
+      }),
+    });
+  });
+}
+
+test("login failure shows inline error and error toast", async ({ page }) => {
+  await mockConfig(page);
+  await page.route("**/auth/login", async (route) => {
+    await route.fulfill({
+      status: 401,
+      contentType: "application/json",
+      body: JSON.stringify({ message: "Invalid credentials" }),
+    });
+  });
+
+  await page.goto("/login");
+  await page.getByPlaceholder("Username").fill("bad-user");
+  await page.getByPlaceholder("Password").fill("bad-password");
+  await page.getByRole("button", { name: "Login" }).click();
+
+  await expect(page.getByText("Invalid credentials")).toBeVisible();
+  await expect(page.locator(".action-toast.action-toast-error")).toContainText("Login failed");
+  await expect(page.locator(".action-toast.action-toast-error")).toContainText("Invalid credentials");
+});
+
+test("manage stores add success shows success toast", async ({ page }) => {
+  await seedAuthStorage(page);
+  await mockConfig(page);
+
+  let linkedStoreIds = [10];
+  const allStores = [
+    { id: 10, name: "Costco North", location: "North", is_default: true },
+    { id: 11, name: "Costco South", location: "South", is_default: false },
+  ];
+
+  await page.route("**/households", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify([{ id: 1, name: "Toast Home", role: "admin", invite_code: "ABCD1234" }]),
+    });
+  });
+
+  await page.route("**/stores/household/1", async (route) => {
+    const request = route.request();
+    if (request.method() === "GET") {
+      const payload = linkedStoreIds.map((id, index) => {
+        const store = allStores.find((candidate) => candidate.id === id);
+        return {
+          ...store,
+          is_default: index === 0,
+        };
+      });
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify(payload),
+      });
+      return;
+    }
+
+    if (request.method() === "POST") {
+      const body = request.postDataJSON() as { storeId?: number };
+      if (body.storeId && !linkedStoreIds.includes(body.storeId)) {
+        linkedStoreIds = [...linkedStoreIds, body.storeId];
+      }
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify({ ok: true }),
+      });
+      return;
+    }
+
+    await route.fallback();
+  });
+
+  await page.route("**/stores", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify(allStores),
+    });
+  });
+
+  await page.goto("/manage?tab=stores");
+  await page.getByRole("button", { name: "+ Add Store" }).click();
+  await page.locator(".available-store-card").filter({ hasText: "Costco South" }).getByRole("button", { name: "Add" }).click();
+
+  await expect(page.locator(".action-toast.action-toast-success")).toContainText("Added store");
+  await expect(page.locator(".action-toast.action-toast-success")).toContainText("Costco South");
+});
+
+test("manage stores add failure shows normalized error toast", async ({ page }) => {
+  await seedAuthStorage(page);
+  await mockConfig(page);
+
+  const allStores = [
+    { id: 10, name: "Costco North", location: "North", is_default: true },
+    { id: 11, name: "Costco South", location: "South", is_default: false },
+  ];
+
+  await page.route("**/households", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify([{ id: 1, name: "Toast Home", role: "admin", invite_code: "ABCD1234" }]),
+    });
+  });
+
+  await page.route("**/stores/household/1", async (route) => {
+    const request = route.request();
+    if (request.method() === "GET") {
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify([{ id: 10, name: "Costco North", location: "North", is_default: true }]),
+      });
+      return;
+    }
+
+    if (request.method() === "POST") {
+      await route.fulfill({
+        status: 400,
+        contentType: "application/json",
+        body: JSON.stringify({
+          error: { message: "Store already linked to household" },
+        }),
+      });
+      return;
+    }
+
+    await route.fallback();
+  });
+
+  await page.route("**/stores", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify(allStores),
+    });
+  });
+
+  await page.goto("/manage?tab=stores");
+  await page.getByRole("button", { name: "+ Add Store" }).click();
+  await page.locator(".available-store-card").filter({ hasText: "Costco South" }).getByRole("button", { name: "Add" }).click();
+
+  await expect(page.locator(".action-toast.action-toast-error")).toContainText("Add store failed");
+  await expect(page.locator(".action-toast.action-toast-error")).toContainText("Store already linked to household");
+});
+
+test("invite accept JOINED shows success toast", async ({ page }) => {
+  await seedAuthStorage(page);
+  await mockConfig(page);
+
+  await page.route("**/api/invite-links/toast-token", async (route) => {
+    const request = route.request();
+
+    if (request.method() === "GET") {
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify({
+          link: {
+            token: "toast-token",
+            status: "ACTIVE",
+            viewerStatus: null,
+            active_policy: "AUTO_ACCEPT",
+            group_name: "Toast Group",
+          },
+        }),
+      });
+      return;
+    }
+
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        result: {
+          status: "JOINED",
+          group: { name: "Toast Group" },
+        },
+      }),
+    });
+  });
+
+  await page.route("**/households", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify([{ id: 1, name: "Toast Home", role: "member", invite_code: "ABCD1234" }]),
+    });
+  });
+
+  await page.goto("/invite/toast-token");
+  await page.getByRole("button", { name: "Join Group" }).click();
+
+  await expect(page.locator(".action-toast.action-toast-success")).toContainText("Joined group");
+  await expect(page.locator(".action-toast.action-toast-success")).toContainText("Toast Group");
+});
+
+test("invite accept PENDING shows info toast", async ({ page }) => {
+  await seedAuthStorage(page);
+  await mockConfig(page);
+
+  await page.route("**/api/invite-links/pending-token", async (route) => {
+    const request = route.request();
+
+    if (request.method() === "GET") {
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify({
+          link: {
+            token: "pending-token",
+            status: "ACTIVE",
+            viewerStatus: null,
+            active_policy: "APPROVAL_REQUIRED",
+            group_name: "Pending Group",
+          },
+        }),
+      });
+      return;
+    }
+
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        result: {
+          status: "PENDING",
+          group: { name: "Pending Group" },
+        },
+      }),
+    });
+  });
+
+  await page.route("**/households", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify([{ id: 1, name: "Toast Home", role: "member", invite_code: "ABCD1234" }]),
+    });
+  });
+
+  await page.goto("/invite/pending-token");
+  await page.getByRole("button", { name: "Join Group" }).click();
+
+  await expect(page.locator(".action-toast.action-toast-info")).toContainText("Join request sent");
+  await expect(page.locator(".action-toast.action-toast-info")).toContainText("Pending Group");
+});

jest.config.cjs

@@ -0,0 +1,5 @@
+module.exports = {
+  testEnvironment: "node",
+  roots: ["<rootDir>/backend/tests"],
+  clearMocks: true,
+};

package.json

@@ -2,7 +2,14 @@
   "scripts": {
     "db:migrate": "node scripts/db-migrate.js",
     "db:migrate:status": "node scripts/db-migrate-status.js",
-    "db:migrate:verify": "node scripts/db-migrate-verify.js"
+    "db:migrate:verify": "node scripts/db-migrate-verify.js",
+    "db:migrate:new": "node scripts/db-migrate-new.js",
+    "db:migrate:stale": "node scripts/db-stale-sql-tracker.js --write",
+    "db:migrate:stale:check": "node scripts/db-stale-sql-tracker.js --fail-on-stale",
+    "test": "jest --runInBand",
+    "test:e2e": "npm --prefix frontend run test:e2e --",
+    "test:e2e:headed": "npm --prefix frontend run test:e2e:headed --",
+    "test:e2e:ui": "npm --prefix frontend run test:e2e:ui --"
   },
   "devDependencies": {
     "cross-env": "^10.1.0",

packages/db/migrations/README.md

@@ -5,5 +5,11 @@ This directory is the canonical location for SQL migrations.
 - Use `npm run db:migrate` to apply pending migrations.
 - Use `npm run db:migrate:status` to view applied/pending migrations.
 - Use `npm run db:migrate:verify` to fail when pending migrations exist.
+- Use `npm run db:migrate:new -- <migration-name>` to create a new migration file.
 
 Do not place new canonical migrations under `backend/migrations`.
+
+## Stale baseline
+- `stale-files.json` lists canonical SQL files intentionally treated as stale.
+- Files listed there are skipped by migration commands by default.
+- Add only genuinely new migration files when schema changes are required.

packages/db/migrations/add_image_columns.sql

@@ -1,20 +1,8 @@
-# Database Migration: Add Image Support
-
-Run these SQL commands on your PostgreSQL database:
-
-```sql
 -- Add image columns to grocery_list table
 ALTER TABLE grocery_list
-ADD COLUMN item_image BYTEA,
-ADD COLUMN image_mime_type VARCHAR(50);
+ADD COLUMN IF NOT EXISTS item_image BYTEA,
+ADD COLUMN IF NOT EXISTS image_mime_type VARCHAR(50);
 
--- Optional: Add index for faster queries when filtering by items with images
-CREATE INDEX idx_grocery_list_has_image ON grocery_list ((item_image IS NOT NULL));
-```
-
-## To Verify:
-```sql
-\d grocery_list
-```
-
-You should see the new columns `item_image` and `image_mime_type`.
+-- Index to speed up queries that filter by rows with images.
+CREATE INDEX IF NOT EXISTS idx_grocery_list_has_image
+ON grocery_list ((item_image IS NOT NULL));

packages/db/migrations/stale-files.json

@@ -0,0 +1,12 @@
+{
+  "stale_files": [
+    "add_display_name_column.sql",
+    "add_image_columns.sql",
+    "add_modified_on_column.sql",
+    "add_notes_column.sql",
+    "create_item_classification_table.sql",
+    "create_sessions_table.sql",
+    "multi_household_architecture.sql",
+    "zz_group_invites_and_join_policies.sql"
+  ]
+}

packages/db/migrations/zz_group_invites_and_join_policies.sql

@@ -0,0 +1,165 @@
+BEGIN;
+
+DO $$
+BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'group_join_policy') THEN
+    CREATE TYPE group_join_policy AS ENUM (
+      'NOT_ACCEPTING',
+      'AUTO_ACCEPT',
+      'APPROVAL_REQUIRED'
+    );
+  END IF;
+END
+$$;
+
+DO $$
+BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'group_join_request_status') THEN
+    CREATE TYPE group_join_request_status AS ENUM (
+      'PENDING',
+      'APPROVED',
+      'DENIED',
+      'CANCELED'
+    );
+  END IF;
+END
+$$;
+
+CREATE TABLE IF NOT EXISTS group_settings (
+  group_id INTEGER PRIMARY KEY REFERENCES households(id) ON DELETE CASCADE,
+  join_policy group_join_policy NOT NULL DEFAULT 'NOT_ACCEPTING',
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+INSERT INTO group_settings (group_id, join_policy)
+SELECT h.id, 'NOT_ACCEPTING'::group_join_policy
+FROM households h
+WHERE NOT EXISTS (
+  SELECT 1 FROM group_settings gs WHERE gs.group_id = h.id
+);
+
+CREATE TABLE IF NOT EXISTS group_join_requests (
+  id SERIAL PRIMARY KEY,
+  group_id INTEGER NOT NULL REFERENCES households(id) ON DELETE CASCADE,
+  user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  status group_join_request_status NOT NULL DEFAULT 'PENDING',
+  decided_by INTEGER REFERENCES users(id) ON DELETE SET NULL,
+  decided_at TIMESTAMPTZ,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS uq_group_join_requests_pending
+  ON group_join_requests(group_id, user_id)
+  WHERE status = 'PENDING';
+
+CREATE INDEX IF NOT EXISTS idx_group_join_requests_group
+  ON group_join_requests(group_id);
+
+CREATE TABLE IF NOT EXISTS group_invite_links (
+  id SERIAL PRIMARY KEY,
+  group_id INTEGER NOT NULL REFERENCES households(id) ON DELETE CASCADE,
+  created_by INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  token VARCHAR(64) NOT NULL UNIQUE,
+  policy group_join_policy NOT NULL DEFAULT 'NOT_ACCEPTING',
+  single_use BOOLEAN NOT NULL DEFAULT FALSE,
+  expires_at TIMESTAMPTZ NOT NULL,
+  used_at TIMESTAMPTZ,
+  revoked_at TIMESTAMPTZ,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_group_invite_links_group_id
+  ON group_invite_links(group_id);
+
+CREATE TABLE IF NOT EXISTS group_audit_log (
+  id SERIAL PRIMARY KEY,
+  group_id INTEGER NOT NULL REFERENCES households(id) ON DELETE CASCADE,
+  actor_user_id INTEGER REFERENCES users(id) ON DELETE SET NULL,
+  actor_role VARCHAR(20),
+  event_type VARCHAR(100) NOT NULL,
+  request_id VARCHAR(128) NOT NULL,
+  ip INET,
+  user_agent TEXT,
+  success BOOLEAN NOT NULL DEFAULT TRUE,
+  error_code VARCHAR(100),
+  metadata JSONB NOT NULL DEFAULT '{}'::jsonb,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_group_audit_group_created
+  ON group_audit_log(group_id, created_at DESC);
+
+CREATE INDEX IF NOT EXISTS idx_group_audit_request_id
+  ON group_audit_log(request_id);
+
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1
+    FROM pg_indexes
+    WHERE schemaname = current_schema()
+      AND tablename = 'households'
+      AND indexdef ILIKE 'CREATE UNIQUE INDEX%'
+      AND indexdef ILIKE '%(invite_code)%'
+  ) THEN
+    CREATE UNIQUE INDEX idx_households_invite_code_unique
+      ON households(invite_code);
+  END IF;
+END
+$$;
+
+ALTER TABLE household_members
+DROP CONSTRAINT IF EXISTS household_members_role_check;
+
+UPDATE household_members
+SET role = 'member'
+WHERE role = 'user';
+
+WITH ranked_admins AS (
+  SELECT
+    hm.id,
+    ROW_NUMBER() OVER (
+      PARTITION BY hm.household_id
+      ORDER BY hm.joined_at ASC, hm.id ASC
+    ) AS admin_rank
+  FROM household_members hm
+  WHERE hm.role = 'admin'
+)
+UPDATE household_members hm
+SET role = CASE
+  WHEN ra.admin_rank = 1 THEN 'owner'
+  ELSE 'admin'
+END
+FROM ranked_admins ra
+WHERE hm.id = ra.id;
+
+WITH ownerless_households AS (
+  SELECT h.id AS household_id
+  FROM households h
+  WHERE NOT EXISTS (
+    SELECT 1
+    FROM household_members hm
+    WHERE hm.household_id = h.id
+      AND hm.role = 'owner'
+  )
+),
+first_member AS (
+  SELECT DISTINCT ON (hm.household_id)
+    hm.id,
+    hm.household_id
+  FROM household_members hm
+  JOIN ownerless_households oh ON oh.household_id = hm.household_id
+  ORDER BY hm.household_id, hm.joined_at ASC, hm.id ASC
+)
+UPDATE household_members hm
+SET role = 'owner'
+FROM first_member fm
+WHERE hm.id = fm.id;
+
+ALTER TABLE household_members
+ADD CONSTRAINT household_members_role_check
+CHECK (role IN ('owner', 'admin', 'member'));
+
+COMMIT;

rebuild-dev.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+COMPOSE_FILE="$SCRIPT_DIR/docker-compose.dev.yml"
+
+find_compose_cmd() {
+  if command -v docker-compose >/dev/null 2>&1; then
+    COMPOSE_CMD=(docker-compose)
+    return
+  fi
+
+  if command -v docker >/dev/null 2>&1; then
+    COMPOSE_CMD=(docker compose)
+    return
+  fi
+
+  echo "Docker Compose not found. Install docker-compose or Docker Desktop first."
+  exit 1
+}
+
+main() {
+  find_compose_cmd
+
+  echo "Stopping containers and removing volumes..."
+  "${COMPOSE_CMD[@]}" -f "$COMPOSE_FILE" down -v
+
+  echo "Rebuilding and starting containers..."
+  "${COMPOSE_CMD[@]}" -f "$COMPOSE_FILE" up --build
+}
+
+main "$@"

scripts/db-migrate-common.js

@@ -11,6 +11,48 @@ const migrationsDir = path.resolve(
   "db",
   "migrations"
 );
+const staleConfigPath = path.join(migrationsDir, "stale-files.json");
+
+function readStaleConfigFile() {
+  if (!fs.existsSync(staleConfigPath)) {
+    return new Set();
+  }
+
+  const raw = fs.readFileSync(staleConfigPath, "utf8");
+  let parsed;
+  try {
+    parsed = JSON.parse(raw);
+  } catch (error) {
+    throw new Error(`Invalid JSON in ${staleConfigPath}`);
+  }
+
+  const values = Array.isArray(parsed?.stale_files) ? parsed.stale_files : [];
+  return new Set(
+    values
+      .map((value) => String(value || "").trim())
+      .filter(Boolean)
+  );
+}
+
+function getSkippedMigrations() {
+  const includeStale = String(process.env.DB_MIGRATE_INCLUDE_STALE || "")
+    .trim()
+    .toLowerCase();
+  const skipFromConfig =
+    includeStale === "1" || includeStale === "true" || includeStale === "yes"
+      ? new Set()
+      : readStaleConfigFile();
+
+  const raw = process.env.DB_MIGRATE_SKIP_FILES || "";
+  const skipFromEnv = new Set(
+    raw
+      .split(",")
+      .map((value) => value.trim())
+      .filter(Boolean)
+  );
+
+  return new Set([...skipFromConfig, ...skipFromEnv]);
+}
 
 function ensureDatabaseUrl() {
   const databaseUrl = process.env.DATABASE_URL;
@@ -35,9 +77,11 @@ function ensureMigrationsDir() {
 
 function getMigrationFiles() {
   ensureMigrationsDir();
+  const skipped = getSkippedMigrations();
   return fs
     .readdirSync(migrationsDir)
     .filter((file) => file.endsWith(".sql"))
+    .filter((file) => !skipped.has(file))
     .sort((a, b) => a.localeCompare(b));
 }
 
@@ -104,5 +148,6 @@ module.exports = {
   ensureSchemaMigrationsTable,
   getAppliedMigrations,
   getMigrationFiles,
+  getSkippedMigrations,
   migrationsDir,
 };

scripts/db-migrate-new.js

@@ -0,0 +1,69 @@
+"use strict";
+
+const fs = require("fs");
+const path = require("path");
+const { migrationsDir } = require("./db-migrate-common");
+
+function sanitizeName(input) {
+  return String(input || "")
+    .trim()
+    .toLowerCase()
+    .replace(/[^a-z0-9]+/g, "_")
+    .replace(/^_+|_+$/g, "");
+}
+
+function timestampUtc() {
+  const now = new Date();
+  const pad = (value) => String(value).padStart(2, "0");
+  return [
+    now.getUTCFullYear(),
+    pad(now.getUTCMonth() + 1),
+    pad(now.getUTCDate()),
+    "_",
+    pad(now.getUTCHours()),
+    pad(now.getUTCMinutes()),
+    pad(now.getUTCSeconds()),
+  ].join("");
+}
+
+function main() {
+  const rawName = process.argv.slice(2).join(" ").trim();
+  if (!rawName || process.argv.includes("--help")) {
+    console.log("Usage: npm run db:migrate:new -- <migration-name>");
+    process.exit(rawName ? 0 : 1);
+  }
+
+  const name = sanitizeName(rawName);
+  if (!name) {
+    throw new Error("Migration name must contain letters or numbers.");
+  }
+
+  if (!fs.existsSync(migrationsDir)) {
+    throw new Error(`Migrations directory not found: ${migrationsDir}`);
+  }
+
+  const filename = `${timestampUtc()}_${name}.sql`;
+  const fullPath = path.join(migrationsDir, filename);
+  if (fs.existsSync(fullPath)) {
+    throw new Error(`Migration already exists: ${filename}`);
+  }
+
+  const template = [
+    "BEGIN;",
+    "",
+    "-- Add schema changes here.",
+    "",
+    "COMMIT;",
+    "",
+  ].join("\n");
+
+  fs.writeFileSync(fullPath, template, "utf8");
+  console.log(`Created migration: ${path.relative(process.cwd(), fullPath)}`);
+}
+
+try {
+  main();
+} catch (error) {
+  console.error(error.message);
+  process.exit(1);
+}

scripts/db-migrate.js

@@ -15,6 +15,14 @@ function main() {
     process.exit(0);
   }
 
+  const migrateDisabled = String(process.env.DB_MIGRATE_DISABLE || "")
+    .trim()
+    .toLowerCase();
+  if (migrateDisabled === "1" || migrateDisabled === "true" || migrateDisabled === "yes") {
+    console.log("DB migrations are disabled by DB_MIGRATE_DISABLE. Skipping.");
+    return;
+  }
+
   const databaseUrl = ensureDatabaseUrl();
   ensurePsql();
   ensureSchemaMigrationsTable(databaseUrl);

scripts/db-stale-sql-tracker.js

@@ -0,0 +1,187 @@
+"use strict";
+
+const fs = require("fs");
+const path = require("path");
+const crypto = require("crypto");
+
+const repoRoot = path.resolve(__dirname, "..");
+const canonicalDir = path.resolve(repoRoot, "packages", "db", "migrations");
+const legacyDir = path.resolve(repoRoot, "backend", "migrations");
+const defaultReportPath = path.resolve(legacyDir, "stale-sql-report.json");
+
+function parseArgs(argv) {
+  const args = new Set(argv);
+  return {
+    write: args.has("--write"),
+    failOnStale: args.has("--fail-on-stale"),
+    help: args.has("--help"),
+  };
+}
+
+function ensureDirectoryExists(dirPath, label) {
+  if (!fs.existsSync(dirPath)) {
+    throw new Error(`${label} directory not found: ${dirPath}`);
+  }
+}
+
+function sha256File(filePath) {
+  const hash = crypto.createHash("sha256");
+  hash.update(fs.readFileSync(filePath));
+  return hash.digest("hex");
+}
+
+function listFiles(dirPath) {
+  return fs
+    .readdirSync(dirPath)
+    .filter((name) => fs.statSync(path.join(dirPath, name)).isFile())
+    .sort((a, b) => a.localeCompare(b));
+}
+
+function listSqlFiles(dirPath) {
+  return listFiles(dirPath).filter((name) => name.toLowerCase().endsWith(".sql"));
+}
+
+function mapByNameWithHash(dirPath, names) {
+  const map = new Map();
+  for (const name of names) {
+    map.set(name, {
+      name,
+      path: path.join(dirPath, name),
+      sha256: sha256File(path.join(dirPath, name)),
+    });
+  }
+  return map;
+}
+
+function buildReport() {
+  ensureDirectoryExists(canonicalDir, "Canonical migrations");
+  ensureDirectoryExists(legacyDir, "Legacy migrations");
+
+  const canonicalSql = listSqlFiles(canonicalDir);
+  const legacySql = listSqlFiles(legacyDir);
+  const legacyNonSql = listFiles(legacyDir).filter(
+    (name) => !name.toLowerCase().endsWith(".sql")
+  );
+
+  const canonicalMap = mapByNameWithHash(canonicalDir, canonicalSql);
+  const legacyMap = mapByNameWithHash(legacyDir, legacySql);
+
+  const staleFiles = [];
+  for (const legacyName of legacySql) {
+    const legacyFile = legacyMap.get(legacyName);
+    const canonicalFile = canonicalMap.get(legacyName);
+
+    if (!canonicalFile) {
+      staleFiles.push({
+        filename: legacyName,
+        status: "STALE_ONLY_IN_BACKEND",
+        backend_sha256: legacyFile.sha256,
+      });
+      continue;
+    }
+
+    if (legacyFile.sha256 === canonicalFile.sha256) {
+      staleFiles.push({
+        filename: legacyName,
+        status: "STALE_DUPLICATE_OF_CANONICAL",
+        backend_sha256: legacyFile.sha256,
+        canonical_sha256: canonicalFile.sha256,
+      });
+      continue;
+    }
+
+    staleFiles.push({
+      filename: legacyName,
+      status: "STALE_DIVERGED_FROM_CANONICAL",
+      backend_sha256: legacyFile.sha256,
+      canonical_sha256: canonicalFile.sha256,
+    });
+  }
+
+  const canonicalOnly = canonicalSql
+    .filter((name) => !legacyMap.has(name))
+    .map((name) => ({
+      filename: name,
+      status: "CANONICAL_ONLY",
+      canonical_sha256: canonicalMap.get(name).sha256,
+    }));
+
+  return {
+    generated_at: new Date().toISOString(),
+    canonical_dir: path.relative(repoRoot, canonicalDir),
+    legacy_dir: path.relative(repoRoot, legacyDir),
+    stale_sql_files: staleFiles,
+    canonical_only_sql_files: canonicalOnly,
+    legacy_non_sql_files: legacyNonSql,
+    summary: {
+      stale_total: staleFiles.length,
+      stale_only_in_backend_total: staleFiles.filter(
+        (f) => f.status === "STALE_ONLY_IN_BACKEND"
+      ).length,
+      stale_duplicate_total: staleFiles.filter(
+        (f) => f.status === "STALE_DUPLICATE_OF_CANONICAL"
+      ).length,
+      stale_diverged_total: staleFiles.filter(
+        (f) => f.status === "STALE_DIVERGED_FROM_CANONICAL"
+      ).length,
+      canonical_only_total: canonicalOnly.length,
+    },
+  };
+}
+
+function printReport(report) {
+  console.log("Stale SQL Tracker");
+  console.log(`- Canonical: ${report.canonical_dir}`);
+  console.log(`- Legacy: ${report.legacy_dir}`);
+  console.log(`- Generated: ${report.generated_at}`);
+  console.log("");
+
+  console.log(`Stale SQL files in legacy dir: ${report.summary.stale_total}`);
+  for (const stale of report.stale_sql_files) {
+    console.log(`  - ${stale.filename} :: ${stale.status}`);
+  }
+
+  console.log("");
+  console.log(`Canonical-only SQL files: ${report.summary.canonical_only_total}`);
+  for (const canonicalOnly of report.canonical_only_sql_files) {
+    console.log(`  - ${canonicalOnly.filename}`);
+  }
+
+  console.log("");
+  console.log(`Legacy non-SQL files: ${report.legacy_non_sql_files.length}`);
+  for (const nonSql of report.legacy_non_sql_files) {
+    console.log(`  - ${nonSql}`);
+  }
+}
+
+function writeReport(report) {
+  fs.writeFileSync(defaultReportPath, JSON.stringify(report, null, 2) + "\n", "utf8");
+  console.log("");
+  console.log(`Wrote stale SQL report: ${path.relative(repoRoot, defaultReportPath)}`);
+}
+
+function main() {
+  const options = parseArgs(process.argv.slice(2));
+  if (options.help) {
+    console.log("Usage: node scripts/db-stale-sql-tracker.js [--write] [--fail-on-stale]");
+    process.exit(0);
+  }
+
+  const report = buildReport();
+  printReport(report);
+
+  if (options.write) {
+    writeReport(report);
+  }
+
+  if (options.failOnStale && report.summary.stale_total > 0) {
+    process.exit(1);
+  }
+}
+
+try {
+  main();
+} catch (error) {
+  console.error(error.message);
+  process.exit(1);
+}