docs: consolidate documentation into organized structure

- Move 12 markdown files from root to docs/ subdirectories
- Organize documentation by category:
  • docs/troubleshooting/ (1 file)  - Technical troubleshooting guides
  • docs/deployment/      (4 files) - Deployment and security documentation
  • docs/guides/          (3 files) - Feature-specific guides
  • docs/planning/        (4 files) - Planning and improvement proposals

Root directory cleanup:
- Reduced from 16 to 4 markdown files in root
- Only essential project files remain:
  • CLAUDE.md (AI instructions)
  • README.md (Main project readme)
  • CLEANUP_PLAN.md (Current cleanup plan)
  • SRC_STRUCTURE_IMPROVEMENTS.md (Structure improvements)

This improves:
✅ Documentation discoverability
✅ Logical organization by purpose
✅ Clean root directory
✅ Better maintainability

tests/debug/simple-test.php

@@ -0,0 +1,23 @@
+<?php
+
+declare(strict_types=1);
+
+require_once __DIR__ . '/../../vendor/autoload.php';
+
+echo "Looking for RequestFactory class...\n";
+
+if (class_exists(\App\Framework\Http\RequestFactory::class)) {
+    echo "✅ RequestFactory class exists\n";
+
+    $reflection = new ReflectionClass(\App\Framework\Http\RequestFactory::class);
+    $method = $reflection->getMethod('createFromGlobals');
+
+    echo "Method: " . $method->getName() . "\n";
+    echo "Return type: " . ($method->getReturnType()?->getName() ?? 'none') . "\n";
+
+    $attributes = $method->getAttributes(\App\Framework\DI\Initializer::class);
+    echo "Has Initializer attribute: " . (count($attributes) > 0 ? "✅ YES" : "❌ NO") . "\n";
+
+} else {
+    echo "❌ RequestFactory class not found\n";
+}