feat: enhance GetRecommendationsTool and update query tools for improved functionality

- Expanded the GetRecommendationsTool to support additional recommendation sources, including TMDB popular movies and TV shows, as well as various Douban categories.
- Updated the limit for results in QuerySubscribesTool, SearchMediaTool, and QueryTransferHistoryTool from 20 to 50 or 30, respectively, to provide more comprehensive results.
- Removed unnecessary description fields from media objects in QueryPopularSubscribesTool, QuerySubscribeHistoryTool, and QuerySubscribeSharesTool for cleaner output.

app/agent/tools/impl/search_media.py

@@ -77,9 +77,9 @@ class SearchMediaTool(MoviePilotTool):
                     filtered_results.append(result)
 
                 if filtered_results:
-                    # 限制最多20条结果
+                    # 限制最多30条结果
                     total_count = len(filtered_results)
-                    limited_results = filtered_results[:20]
+                    limited_results = filtered_results[:30]
                     # 精简字段，只保留关键信息
                     simplified_results = []
                     for r in limited_results:
@@ -100,8 +100,8 @@ class SearchMediaTool(MoviePilotTool):
                         simplified_results.append(simplified)
                     result_json = json.dumps(simplified_results, ensure_ascii=False, indent=2)
                     # 如果结果被裁剪，添加提示信息
-                    if total_count > 20:
-                        return f"注意：搜索结果共找到 {total_count} 条，为节省上下文空间，仅显示前 20 条结果。\n\n{result_json}"
+                    if total_count > 30:
+                        return f"注意：搜索结果共找到 {total_count} 条，为节省上下文空间，仅显示前 30 条结果。\n\n{result_json}"
                     return result_json
                 else:
                     return f"未找到符合条件的媒体资源: {title}"