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/test/test_spotify_init.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+require_once __DIR__ . '/vendor/autoload.php';
+
+use App\Framework\Core\ContainerBootstrapper;
+use App\Framework\OAuth\Providers\SpotifyProvider;
+use App\Framework\Config\Environment;
+
+try {
+    $envPath = __DIR__ . '/.env';
+    if (!file_exists($envPath)) {
+        throw new \RuntimeException(".env file not found at: {$envPath}");
+    }
+
+    $envVars = parse_ini_file($envPath);
+    if ($envVars === false) {
+        throw new \RuntimeException("Failed to parse .env file");
+    }
+
+    $env = new Environment($envVars);
+
+    echo "Environment loaded\n";
+    echo "SPOTIFY_CLIENT_ID: " . $env->get(\App\Framework\Config\EnvKey::fromString('SPOTIFY_CLIENT_ID'), 'NOT SET') . "\n";
+    echo "SPOTIFY_CLIENT_SECRET: " . $env->get(\App\Framework\Config\EnvKey::fromString('SPOTIFY_CLIENT_SECRET'), 'NOT SET') . "\n";
+
+    $containerBootstrapper = new ContainerBootstrapper($env);
+    $container = $containerBootstrapper->bootstrap();
+
+    echo "Container bootstrapped\n";
+
+    $spotifyProvider = $container->get(SpotifyProvider::class);
+
+    echo "✅ SpotifyProvider successfully resolved from container\n";
+    echo "Provider name: " . $spotifyProvider->getName() . "\n";
+
+} catch (\Exception $e) {
+    echo "❌ Error: " . $e->getMessage() . "\n";
+    echo "File: " . $e->getFile() . ":" . $e->getLine() . "\n";
+    echo "\nStack trace:\n";
+    echo $e->getTraceAsString() . "\n";
+}