feat(postgres): migrate all route files from SQLite to pg pool

- All 16 route files now import pool from ../db directly
- Removed db parameter from all factory functions
- All callbacks replaced with async/await pool.query()
- All ? placeholders converted to $1, $2... numbered params
- datetime('now') → NOW(), INSERT OR IGNORE → ON CONFLICT DO NOTHING
- LIKE → ILIKE for case-insensitive searches
- Error detection: err.code === '23505' for unique violations
- server.js no longer passes pool/db/requireAuth to route factories
- Only ivantiFindings.js still receives pool (pending task 8 rewrite)

backend/routes/feedback.js

@@ -4,26 +4,16 @@
 const express = require('express');
 const https = require('https');
 const http = require('http');
+const { requireAuth } = require('../middleware/auth');
 
-function createFeedbackRouter(db, requireAuth) {
+function createFeedbackRouter() {
     const router = express.Router();
 
     const GITLAB_URL = process.env.GITLAB_URL || '';
     const GITLAB_PROJECT_ID = process.env.GITLAB_PROJECT_ID || '';
     const GITLAB_PAT = process.env.GITLAB_PAT || '';
 
-    /**
-     * POST /api/feedback
-     *
-     * Create a GitLab issue from a bug report or feature request.
-     * Available to all authenticated users.
-     *
-     * @body {string} type - "bug" or "feature"
-     * @body {string} title - Issue title
-     * @body {string} description - Issue description
-     * @body {string} [page] - Which dashboard page the user was on
-     */
-    router.post('/', requireAuth, async (req, res) => {
+    router.post('/', requireAuth(), async (req, res) => {
         if (!GITLAB_URL || !GITLAB_PROJECT_ID || !GITLAB_PAT) {
             return res.status(503).json({ error: 'Feedback integration not configured' });
         }