fix: comprehensive boolean compatibility for PostgreSQL and SQLite

- Add formatBoolean() usage to all boolean database queries
- Fix 36 boolean comparisons across 18 backend files
- Ensure compatibility between SQLite (0/1) and PostgreSQL (true/false)
- Update all WHERE clauses and UPDATE operations with boolean values

This completes the database compatibility fixes for production deployment.
All boolean operations now work correctly with both database systems.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

backend/src/routes/adminSettings.js

@@ -4,6 +4,7 @@ const path = require('path');
 const fs = require('fs').promises;
 const { body, validationResult } = require('express-validator');
 const { db, logActivity } = require('../database/db');
+const { formatBoolean } = require('../utils/dbCompat');
 const { adminAuth } = require('../middleware/auth');
 const { clearMaintenanceCache } = require('../middleware/maintenance');
 const router = express.Router();
@@ -513,7 +514,7 @@ router.get('/storage/info', adminAuth, async (req, res) => {
 
     // Get archive storage
     const archives = await db('events')
-      .where('is_archived', true)
+      .where('is_archived', formatBoolean(true))
       .whereNotNull('archive_path')
       .select('archive_path');