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/debug_template_renderer.php

@@ -0,0 +1,34 @@
+<?php
+
+require __DIR__ . '/vendor/autoload.php';
+
+use App\Framework\Core\Application;
+use App\Framework\View\TemplateRenderer;
+
+try {
+    $app = new Application();
+    $container = $app->getContainer();
+
+    $templateRenderer = $container->get(TemplateRenderer::class);
+
+    echo "TemplateRenderer class: " . get_class($templateRenderer) . "\n";
+    echo "TemplateRenderer instance of TemplateRenderer: " . ($templateRenderer instanceof TemplateRenderer ? 'YES' : 'NO') . "\n";
+
+    if (method_exists($templateRenderer, 'render')) {
+        echo "Has render method: YES\n";
+    } else {
+        echo "Has render method: NO\n";
+    }
+
+    // Check if it's the Engine class we expect
+    if (get_class($templateRenderer) === 'App\Framework\View\Engine') {
+        echo "Is Engine class: YES\n";
+    } else {
+        echo "Is Engine class: NO\n";
+        echo "Actual class: " . get_class($templateRenderer) . "\n";
+    }
+
+} catch (Exception $e) {
+    echo "Error: " . $e->getMessage() . "\n";
+    echo "Trace: " . $e->getTraceAsString() . "\n";
+}