refactor: reorganize project structure for better maintainability

- Move 45 debug/test files from root to organized scripts/ directories
- Secure public/ directory by removing debug files (security improvement)
- Create structured scripts organization:
  • scripts/debug/      (20 files) - Framework debugging tools
  • scripts/test/       (18 files) - Test and validation scripts
  • scripts/maintenance/ (5 files) - Maintenance utilities
  • scripts/dev/         (2 files) - Development tools

Security improvements:
- Removed all debug/test files from public/ directory
- Only production files remain: index.php, health.php

Root directory cleanup:
- Reduced from 47 to 2 PHP files in root
- Only essential production files: console.php, worker.php

This improves:
✅ Security (no debug code in public/)
✅ Organization (clear separation of concerns)
✅ Maintainability (easy to find and manage scripts)
✅ Professional structure (clean root directory)

scripts/debug/env-check.php

@@ -0,0 +1,27 @@
+<?php
+// Simple production test endpoint
+declare(strict_types=1);
+
+// Load environment
+$envFile = __DIR__ . '/../.env';
+if (file_exists($envFile)) {
+    $lines = file($envFile, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
+    foreach ($lines as $line) {
+        if (strpos($line, '#') === 0) continue;
+        if (strpos($line, '=') !== false) {
+            [$key, $value] = explode('=', $line, 2);
+            $_ENV[trim($key)] = trim($value);
+        }
+    }
+}
+
+header('Content-Type: application/json');
+
+echo json_encode([
+    'status' => 'production-test',
+    'app_env' => $_ENV['APP_ENV'] ?? 'not-set',
+    'app_debug' => $_ENV['APP_DEBUG'] ?? 'not-set',
+    'analytics_track_performance' => $_ENV['ANALYTICS_TRACK_PERFORMANCE'] ?? 'not-set',
+    'xdebug_mode' => $_ENV['XDEBUG_MODE'] ?? 'not-set',
+    'timestamp' => date('Y-m-d H:i:s')
+]);