fix(ui): use bounded member dropdown in assign-item modal

frontend/src/components/modals/AssignItemForModal.jsx

@@ -1,10 +1,16 @@
-import { useEffect, useMemo, useState } from "react";
+import { useEffect, useMemo, useRef, useState } from "react";
 import "../../styles/components/AssignItemForModal.css";
 
 function getMemberLabel(member) {
   return member.display_name || member.name || member.username || `User ${member.id}`;
 }
 
+function getMemberOptionLabel(member, maxLength = 28) {
+  const label = getMemberLabel(member);
+  if (label.length <= maxLength) return label;
+  return `${label.slice(0, maxLength - 3)}...`;
+}
+
 export default function AssignItemForModal({
   isOpen,
   members,
@@ -12,6 +18,8 @@ export default function AssignItemForModal({
   onConfirm
 }) {
   const [selectedUserId, setSelectedUserId] = useState("");
+  const [isDropdownOpen, setIsDropdownOpen] = useState(false);
+  const dropdownRef = useRef(null);
 
   const hasMembers = members.length > 0;
   const selectedMember = useMemo(
@@ -22,6 +30,7 @@ export default function AssignItemForModal({
   useEffect(() => {
     if (!isOpen) return;
     setSelectedUserId(members[0] ? String(members[0].id) : "");
+    setIsDropdownOpen(false);
   }, [isOpen, members]);
 
   useEffect(() => {
@@ -29,13 +38,31 @@ export default function AssignItemForModal({
 
     const handleEscape = (event) => {
       if (event.key === "Escape") {
-        onCancel();
+        if (isDropdownOpen) {
+          setIsDropdownOpen(false);
+        } else {
+          onCancel();
+        }
       }
     };
 
     window.addEventListener("keydown", handleEscape);
     return () => window.removeEventListener("keydown", handleEscape);
-  }, [isOpen, onCancel]);
+  }, [isDropdownOpen, isOpen, onCancel]);
+
+  useEffect(() => {
+    if (!isOpen || !isDropdownOpen) return undefined;
+
+    const handlePointerDown = (event) => {
+      if (!dropdownRef.current) return;
+      if (!dropdownRef.current.contains(event.target)) {
+        setIsDropdownOpen(false);
+      }
+    };
+
+    window.addEventListener("pointerdown", handlePointerDown);
+    return () => window.removeEventListener("pointerdown", handlePointerDown);
+  }, [isDropdownOpen, isOpen]);
 
   if (!isOpen) return null;
 
@@ -48,27 +75,54 @@ export default function AssignItemForModal({
     <div className="modal-overlay" onClick={onCancel}>
       <div className="modal assign-item-for-modal" onClick={(event) => event.stopPropagation()}>
         <h2 className="modal-title">Add Item For Someone Else</h2>
-        <p className="assign-item-for-modal-description">
-          Who should this item be assigned to?
-        </p>
 
         {hasMembers ? (
           <div className="assign-item-for-modal-field">
-            <label htmlFor="assign-item-for-member" className="form-label">
+            <label className="form-label">
               Household member
             </label>
-            <select
-              id="assign-item-for-member"
-              className="form-select"
-              value={selectedUserId}
-              onChange={(event) => setSelectedUserId(event.target.value)}
-            >
-              {members.map((member) => (
-                <option key={member.id} value={member.id}>
-                  {getMemberLabel(member)}
-                </option>
-              ))}
-            </select>
+            <div className="assign-item-for-dropdown" ref={dropdownRef}>
+              <button
+                type="button"
+                className={`assign-item-for-dropdown-trigger ${isDropdownOpen ? "is-open" : ""}`}
+                aria-haspopup="listbox"
+                aria-expanded={isDropdownOpen}
+                onClick={() => setIsDropdownOpen((prev) => !prev)}
+              >
+                <span className="assign-item-for-dropdown-label">
+                  {selectedMember ? getMemberOptionLabel(selectedMember) : "Select member"}
+                </span>
+                <span className="assign-item-for-dropdown-caret" aria-hidden="true">
+                  {isDropdownOpen ? "▲" : "▼"}
+                </span>
+              </button>
+
+              {isDropdownOpen ? (
+                <div className="assign-item-for-dropdown-menu" role="listbox" aria-label="Household member">
+                  {members.map((member) => {
+                    const memberId = String(member.id);
+                    const isSelected = memberId === String(selectedUserId);
+
+                    return (
+                      <button
+                        key={member.id}
+                        type="button"
+                        className={`assign-item-for-dropdown-option ${isSelected ? "is-selected" : ""}`}
+                        role="option"
+                        aria-selected={isSelected}
+                        onClick={() => {
+                          setSelectedUserId(memberId);
+                          setIsDropdownOpen(false);
+                        }}
+                        title={getMemberLabel(member)}
+                      >
+                        {getMemberOptionLabel(member)}
+                      </button>
+                    );
+                  })}
+                </div>
+              ) : null}
+            </div>
           </div>
         ) : (
           <p className="assign-item-for-modal-empty">

frontend/src/styles/components/AssignItemForModal.css

@@ -1,15 +1,91 @@
 .assign-item-for-modal {
+  width: min(420px, calc(100vw - (2 * var(--spacing-md))));
   max-width: 420px;
-}
-
-.assign-item-for-modal-description {
-  margin: 0 0 var(--spacing-md) 0;
-  color: var(--color-text-secondary);
-  font-size: var(--font-size-sm);
+  overflow-x: hidden;
 }
 
 .assign-item-for-modal-field {
   margin-bottom: var(--spacing-sm);
+  width: 100%;
+  min-width: 0;
+}
+
+.assign-item-for-dropdown {
+  position: relative;
+  width: 100%;
+  min-width: 0;
+}
+
+.assign-item-for-dropdown-trigger {
+  width: 100%;
+  min-width: 0;
+  max-width: 100%;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: var(--spacing-xs);
+  padding: var(--input-padding-y) var(--input-padding-x);
+  border: var(--border-width-thin) solid var(--input-border-color);
+  border-radius: var(--input-border-radius);
+  background: var(--color-bg-surface);
+  color: var(--color-text-primary);
+  font-size: var(--font-size-base);
+  text-align: left;
+  cursor: pointer;
+}
+
+.assign-item-for-dropdown-trigger.is-open,
+.assign-item-for-dropdown-trigger:focus-visible {
+  outline: none;
+  border-color: var(--input-focus-border-color);
+  box-shadow: var(--input-focus-shadow);
+}
+
+.assign-item-for-dropdown-label {
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.assign-item-for-dropdown-caret {
+  flex-shrink: 0;
+  font-size: 0.75rem;
+  color: var(--color-text-secondary);
+}
+
+.assign-item-for-dropdown-menu {
+  position: absolute;
+  top: calc(100% + 6px);
+  left: 0;
+  right: 0;
+  z-index: 3;
+  max-height: 180px;
+  overflow-y: auto;
+  background: var(--color-bg-surface);
+  border: var(--border-width-thin) solid var(--input-border-color);
+  border-radius: var(--border-radius-md);
+  box-shadow: var(--shadow-lg);
+}
+
+.assign-item-for-dropdown-option {
+  width: 100%;
+  display: block;
+  text-align: left;
+  margin: 0;
+  border: 0;
+  border-radius: 0;
+  padding: 10px var(--input-padding-x);
+  background: transparent;
+  color: var(--color-text-primary);
+  cursor: pointer;
+}
+
+.assign-item-for-dropdown-option:hover {
+  background: var(--color-bg-hover);
+}
+
+.assign-item-for-dropdown-option.is-selected {
+  background: var(--color-primary-light);
 }
 
 .assign-item-for-modal-empty {