feat(tools): add OpenClaw remote agent tool integration

- Detect x-openclaw flag in OpenAPI schema and init dedicated config
- Implement multimodal input/output (image download, compress, base64)
- Add OpenClaw connection test and status validation in tool service
- Fix auth_config token check to support both api_key and bearer_token
- Inject runtime context (user_id, conversation_id, files) in chat services

api/app/services/app_chat_service.py

@@ -165,7 +165,18 @@ class AppChatService:
             multimodal_service = MultimodalService(self.db, model_info)
             processed_files = await multimodal_service.process_files(files)
             logger.info(f"处理了 {len(processed_files)} 个文件")
-
+        #============为 OpenClaw 工具注入会话session======
+        # 为 OpenClaw 工具注入运行时上下文
+        for t in tools:
+            if hasattr(t, 'tool_instance') and hasattr(t.tool_instance, '_is_openclaw'):
+                if t.tool_instance._is_openclaw:
+                    t.tool_instance._user_id = user_id or "anonymous"
+                    t.tool_instance._conversation_id = (
+                        str(conversation_id) if conversation_id else None)
+                     # 注入用户上传的文件
+                    if processed_files:
+                        t.tool_instance._uploaded_files = processed_files
+        #============为 OpenClaw 工具注入会话session======
         # 调用 Agent（支持多模态）
         result = await agent.chat(
             message=message,
@@ -413,6 +424,17 @@ class AppChatService:
                 processed_files = await multimodal_service.process_files(files)
                 logger.info(f"处理了 {len(processed_files)} 个文件")
 
+            #============为 OpenClaw 工具注入运行时上下文======
+            for t in tools:
+                if hasattr(t, 'tool_instance') and hasattr(t.tool_instance, '_is_openclaw'):
+                    if t.tool_instance._is_openclaw:
+                        t.tool_instance._user_id = user_id or "anonymous"
+                        t.tool_instance._conversation_id = (
+                            str(conversation_id) if conversation_id else None)
+                        if processed_files:
+                            t.tool_instance._uploaded_files = processed_files
+            #============为 OpenClaw 工具注入运行时上下文结束======
+
             # 流式调用 Agent（支持多模态），同时并行启动 TTS
             full_content = ""
             full_reasoning = ""