Add HLS.js support and enhance content streaming logic

- Integrated HLS.js version 1.6.15 into the project for improved video streaming capabilities.
- Updated the ContentsController to check for HLS manifest availability and fall back to presigned URLs for original files if not found.
- Enhanced the VideoPlayer component to handle loading and error states more effectively, improving user experience during streaming.
- Refactored content service methods to return detailed streaming information, including HLS and DASH manifest URLs.

src/services/content.service.ts

@@ -57,10 +57,15 @@ class ContentService {
   }
 
   /**
-   * Get streaming URL for content (requires subscription or rental)
+   * Get streaming URLs for content (requires subscription or rental).
+   * Returns the HLS / DASH / FairPlay manifest URLs from the backend.
    */
-  async getStreamingUrl(contentId: string): Promise<{ url: string; drmToken?: string }> {
-    return apiService.get<{ url: string; drmToken?: string }>(`/contents/${contentId}/stream`)
+  async getStreamInfo(contentId: string): Promise<{
+    file: string
+    widevine: string
+    fairplay: string
+  }> {
+    return apiService.get(`/contents/${contentId}/stream`)
   }
 
   /**