fix: resolve gray screens and add automatic versioning

1. Fix Downloads screen gray screen issue:
   - Add DownloadsProvider to main.dart providers list
   - Remove @RoutePage() decorator from DownloadsScreen
   - Downloads screen now displays torrent list correctly

2. Fix movie detail screen gray screen issue:
   - Improve Movie.fromJson() with better error handling
   - Safe parsing of genres field (handles both Map and String formats)
   - Add fallback 'Untitled' for movies without title
   - Add detailed logging in MovieDetailProvider
   - Better error messages with stack traces

3. Add automatic version update from CI/CD tags:
   - GitLab CI: Update pubspec.yaml version from CI_COMMIT_TAG before build
   - GitHub Actions: Update pubspec.yaml version from GITHUB_REF before build
   - Version format: tag v0.0.18 becomes version 0.0.18+18
   - Applies to all build jobs (arm64, arm32, x64)

How versioning works:
- When you create tag v0.0.18, CI automatically updates pubspec.yaml
- Build uses version 0.0.18+18 (version+buildNumber)
- APK shows correct version in About screen and Google Play
- No manual pubspec.yaml updates needed

Example:
- Create tag: git tag v0.0.18 && git push origin v0.0.18
- CI reads tag, extracts '0.0.18'
- Updates: version: 0.0.18+18 in pubspec.yaml
- Builds APK with this version
- Release created with proper version number

Changes:
- lib/main.dart: Add DownloadsProvider
- lib/presentation/screens/downloads/downloads_screen.dart: Remove @RoutePage
- lib/data/models/movie.dart: Safe JSON parsing with error handling
- lib/presentation/providers/movie_detail_provider.dart: Add detailed logging
- .gitlab-ci.yml: Add version update script in all build jobs
- .github/workflows/release.yml: Add version update step in all build jobs

Result:
✅ Downloads screen displays properly
✅ Movie details screen loads correctly
✅ Automatic versioning from tags (0.0.18, 0.0.19, etc.)
✅ No more gray screens!

lib/data/models/movie.dart

@@ -67,30 +67,47 @@ class Movie extends HiveObject {
   });
 
   factory Movie.fromJson(Map<String, dynamic> json) {
-    return Movie(
-      id: (json['id'] as num).toString(), // Ensure id is a string
-      title: (json['title'] ?? json['name'] ?? '') as String,
-      posterPath: json['poster_path'] as String?,
-      backdropPath: json['backdrop_path'] as String?,
-      overview: json['overview'] as String?,
-      releaseDate: json['release_date'] != null && json['release_date'].isNotEmpty
-          ? DateTime.tryParse(json['release_date'] as String)
-          : json['first_air_date'] != null && json['first_air_date'].isNotEmpty
-              ? DateTime.tryParse(json['first_air_date'] as String)
-              : null,
-      genres: List<String>.from(json['genres']?.map((g) => g['name']) ?? []),
-      voteAverage: (json['vote_average'] as num?)?.toDouble() ?? 0.0,
-      popularity: (json['popularity'] as num?)?.toDouble() ?? 0.0,
-      runtime: json['runtime'] is num
-          ? (json['runtime'] as num).toInt()
-          : (json['episode_run_time'] is List && (json['episode_run_time'] as List).isNotEmpty)
-              ? ((json['episode_run_time'] as List).first as num).toInt()
-              : null,
-      seasonsCount: json['number_of_seasons'] as int?,
-      episodesCount: json['number_of_episodes'] as int?,
-      tagline: json['tagline'] as String?,
-      mediaType: (json['media_type'] ?? (json['title'] != null ? 'movie' : 'tv')) as String,
-    );
+    try {
+      // Parse genres safely
+      List<String> genresList = [];
+      if (json['genres'] != null) {
+        if (json['genres'] is List) {
+          genresList = (json['genres'] as List)
+              .map((g) => g is Map ? (g['name'] as String?) ?? '' : g.toString())
+              .where((name) => name.isNotEmpty)
+              .toList();
+        }
+      }
+
+      return Movie(
+        id: (json['id'] as num).toString(), // Ensure id is a string
+        title: (json['title'] ?? json['name'] ?? 'Untitled') as String,
+        posterPath: json['poster_path'] as String?,
+        backdropPath: json['backdrop_path'] as String?,
+        overview: json['overview'] as String?,
+        releaseDate: json['release_date'] != null && json['release_date'].toString().isNotEmpty
+            ? DateTime.tryParse(json['release_date'].toString())
+            : json['first_air_date'] != null && json['first_air_date'].toString().isNotEmpty
+                ? DateTime.tryParse(json['first_air_date'].toString())
+                : null,
+        genres: genresList,
+        voteAverage: (json['vote_average'] as num?)?.toDouble() ?? 0.0,
+        popularity: (json['popularity'] as num?)?.toDouble() ?? 0.0,
+        runtime: json['runtime'] is num
+            ? (json['runtime'] as num).toInt()
+            : (json['episode_run_time'] is List && (json['episode_run_time'] as List).isNotEmpty)
+                ? ((json['episode_run_time'] as List).first as num).toInt()
+                : null,
+        seasonsCount: json['number_of_seasons'] as int?,
+        episodesCount: json['number_of_episodes'] as int?,
+        tagline: json['tagline'] as String?,
+        mediaType: (json['media_type'] ?? (json['title'] != null ? 'movie' : 'tv')) as String,
+      );
+    } catch (e) {
+      print('Error parsing Movie from JSON: $e');
+      print('JSON data: $json');
+      rethrow;
+    }
   }
 
   Map<String, dynamic> toJson() => _$MovieToJson(this);