Enhance API functionality and improve JWT authentication

- Added JWT authentication support in AuthService and JwtService.
- Implemented token generation and refresh mechanisms.
- Updated ApiAuthMiddleware to handle authentication for protected routes.
- Created ApiController and BaseApiController for standardized API responses.
- Developed MediaController for managing media items with pagination and search capabilities.
- Introduced DocsController for serving API documentation via Swagger UI.
- Added routes for API documentation and media management.
- Improved error handling and response formatting across API endpoints.
- Updated composer.json to include necessary JWT and Swagger UI dependencies.

app/Controllers/Api/ApiController.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace App\Controllers\Api;
+
+use Psr\Http\Message\ResponseInterface as Response;
+use Psr\Http\Message\ServerRequestInterface as Request;
+
+abstract class ApiController
+{
+    protected function success(Response $response, $data = null, int $status = 200): Response
+    {
+        $responseData = ['success' => true];
+        
+        if ($data !== null) {
+            $responseData['data'] = $data;
+        }
+        
+        return $this->json($response, $responseData, $status);
+    }
+
+    protected function error(Response $response, string $message, int $status = 400, array $errors = []): Response
+    {
+        $responseData = [
+            'success' => false,
+            'error' => [
+                'message' => $message,
+                'code' => $status
+            ]
+        ];
+        
+        if (!empty($errors)) {
+            $responseData['error']['details'] = $errors;
+        }
+        
+        return $this->json($response, $responseData, $status);
+    }
+
+    protected function json(Response $response, $data, int $status = 200): Response
+    {
+        $response->getBody()->write(json_encode($data));
+        return $response
+            ->withHeader('Content-Type', 'application/json')
+            ->withStatus($status);
+    }
+
+    protected function getPaginationParams(Request $request): array
+    {
+        $params = $request->getQueryParams();
+        $page = max(1, (int)($params['page'] ?? 1));
+        $perPage = min(100, max(1, (int)($params['per_page'] ?? 20)));
+        
+        return [
+            'page' => $page,
+            'per_page' => $perPage,
+            'offset' => ($page - 1) * $perPage
+        ];
+    }
+}