fix string similarity check

backend/models/list.model.js

@@ -105,7 +105,6 @@ exports.getSuggestions = async (query) => {
        LIMIT 10`,
     [`%${query}%`]
   );
-  res = result.rows;
   return result.rows;
 };
 

docker-compose.prod.yml

@@ -1,16 +0,0 @@
-services:
-  frontend:
-    build: ./frontend
-    environment:
-      - MODE_ENV=production
-    ports:
-      - "3000:5173"
-    depends_on:
-      - backend
-
-  backend:
-    build: ./backend
-    ports:
-      - "5000:5000"
-    env_file:
-      - ./backend/.env

frontend/src/pages/GroceryList.jsx

@@ -139,7 +139,7 @@ export default function GroceryList() {
 
     // Only check for similar items if exact item doesn't exist
     const allItems = [...items, ...recentlyBoughtItems];
-    const similar = findSimilarItems(itemName, allItems, 80);
+    const similar = findSimilarItems(itemName, allItems, 70);
     if (similar.length > 0) {
       // Show modal and wait for user decision
       setSimilarItemSuggestion({ originalName: itemName, suggestedItem: similar[0], quantity });

frontend/src/utils/stringSimilarity.js

@@ -39,6 +39,14 @@ export function calculateSimilarity(str1, str2) {
   if (lower1 === lower2) return 100;
   if (lower1.length === 0 || lower2.length === 0) return 0;
 
+  // Check if one string contains the other (substring match)
+  if (lower1.includes(lower2) || lower2.includes(lower1)) {
+    // Give high similarity for substring matches
+    const minLen = Math.min(lower1.length, lower2.length);
+    const maxLen = Math.max(lower1.length, lower2.length);
+    return Math.round((minLen / maxLen) * 100);
+  }
+
   const distance = levenshteinDistance(lower1, lower2);
   const maxLength = Math.max(lower1.length, lower2.length);
   const similarity = ((maxLength - distance) / maxLength) * 100;
@@ -53,7 +61,7 @@ export function calculateSimilarity(str1, str2) {
  * @param {number} threshold - Minimum similarity percentage (default 80)
  * @returns {Array} - Array of similar items sorted by similarity
  */
-export function findSimilarItems(inputName, existingItems, threshold = 80) {
+export function findSimilarItems(inputName, existingItems, threshold = 70) {
   const similar = [];
 
   for (const item of existingItems) {