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/query_subscribes.py

@@ -55,9 +55,9 @@ class QuerySubscribesTool(MoviePilotTool):
                     continue
                 filtered_subscribes.append(sub)
             if filtered_subscribes:
-                # 限制最多20条结果
+                # 限制最多50条结果
                 total_count = len(filtered_subscribes)
-                limited_subscribes = filtered_subscribes[:20]
+                limited_subscribes = filtered_subscribes[:50]
                 # 精简字段，只保留关键信息
                 simplified_subscribes = []
                 for s in limited_subscribes:
@@ -72,7 +72,6 @@ class QuerySubscribesTool(MoviePilotTool):
                         "bangumiid": s.bangumiid,
                         "poster": s.poster,
                         "vote": s.vote,
-                        "description": s.description[:200] + "..." if s.description and len(s.description) > 200 else s.description,
                         "state": s.state,
                         "total_episode": s.total_episode,
                         "lack_episode": s.lack_episode,
@@ -82,8 +81,8 @@ class QuerySubscribesTool(MoviePilotTool):
                     simplified_subscribes.append(simplified)
                 result_json = json.dumps(simplified_subscribes, 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：查询结果共找到 {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 > 50:
+                    return f"注意：查询结果共找到 {total_count} 条，为节省上下文空间，仅显示前 50 条结果。\n\n{result_json}"
                 return result_json
             return "未找到相关订阅"
         except Exception as e: