feat: Implement server-side category and product search via WebSockets, replacing client-side filtering with debounced input and dynamic tree expansion based on server results.

src/server/socket/connection.js

@@ -1,6 +1,20 @@
-export function registerConnection(io) {
+import { findMatches } from '../utils/search-helper.js';
+
+export function registerConnection(io, cacheDir) {
     io.on('connection', (socket) => {
         console.log('🔌 Client connected');
+
+        socket.on('search', async (query) => {
+            // console.log(`🔍 Search request: "${query}"`);
+            try {
+                const matches = await findMatches(query, cacheDir);
+                socket.emit('searchResults', { query, matches });
+            } catch (err) {
+                console.error('Search error:', err);
+                socket.emit('searchResults', { query, matches: [] });
+            }
+        });
+
         socket.on('disconnect', () => {
             console.log('🔌 Client disconnected');
         });