后端没修完版

src/langbot/pkg/core/app.py

@@ -31,6 +31,7 @@ from ..api.http.service import mcp as mcp_service
 from ..api.http.service import apikey as apikey_service
 from ..api.http.service import webhook as webhook_service
 from ..api.http.service import monitoring as monitoring_service
+from ..api.http.service import workflow as workflow_service
 
 from ..discover import engine as discover_engine
 from ..storage import mgr as storagemgr
@@ -149,6 +150,8 @@ class Application:
 
     webhook_service: webhook_service.WebhookService = None
 
+    workflow_service: workflow_service.WorkflowService = None
+
     telemetry: telemetry_module.TelemetryManager = None
 
     survey: survey_module.SurveyManager = None
@@ -218,6 +221,25 @@ class Application:
                     scopes=[core_entities.LifecycleControlScope.APPLICATION],
                 )
 
+            async def workflow_execution_cleanup_loop():
+                check_interval_seconds = 60
+                while True:
+                    try:
+                        cancelled = await self.workflow_service.cleanup_stale_executions()
+                        if cancelled > 0:
+                            self.logger.info(
+                                f'Workflow execution auto-cleanup: cancelled {cancelled} stale executions'
+                            )
+                    except Exception as e:
+                        self.logger.warning(f'Workflow execution auto-cleanup error: {e}')
+                    await asyncio.sleep(check_interval_seconds)
+
+            self.task_mgr.create_task(
+                workflow_execution_cleanup_loop(),
+                name='workflow-execution-cleanup',
+                scopes=[core_entities.LifecycleControlScope.APPLICATION],
+            )
+
             self.task_mgr.create_task(
                 never_ending(),
                 name='never-ending-task',

src/langbot/pkg/core/stages/build_app.py

@@ -28,6 +28,7 @@ from ...api.http.service import mcp as mcp_service
 from ...api.http.service import apikey as apikey_service
 from ...api.http.service import webhook as webhook_service
 from ...api.http.service import monitoring as monitoring_service
+from ...api.http.service import workflow as workflow_service
 from ...discover import engine as discover_engine
 from ...storage import mgr as storagemgr
 from ...utils import logcache
@@ -85,6 +86,9 @@ class BuildAppStage(stage.BootingStage):
         webhook_service_inst = webhook_service.WebhookService(ap)
         ap.webhook_service = webhook_service_inst
 
+        workflow_service_inst = workflow_service.WorkflowService(ap)
+        ap.workflow_service = workflow_service_inst
+
         proxy_mgr = proxy.ProxyManager(ap)
         await proxy_mgr.initialize()
         ap.proxy_mgr = proxy_mgr

src/langbot/pkg/core/stages/load_config.py

@@ -221,3 +221,52 @@ class LoadConfigStage(stage.BootingStage):
         ap.pipeline_config_meta_safety = await load_resource_yaml_template_data('metadata/pipeline/safety.yaml')
         ap.pipeline_config_meta_ai = await load_resource_yaml_template_data('metadata/pipeline/ai.yaml')
         ap.pipeline_config_meta_output = await load_resource_yaml_template_data('metadata/pipeline/output.yaml')
+
+        # Load workflow node configurations from YAML files
+        ap.workflow_node_configs = {}
+        node_config_files = [
+            # Trigger nodes
+            'metadata/nodes/message_trigger.yaml',
+            'metadata/nodes/cron_trigger.yaml',
+            'metadata/nodes/webhook_trigger.yaml',
+            'metadata/nodes/event_trigger.yaml',
+            # AI/Process nodes
+            'metadata/nodes/llm_call.yaml',
+            'metadata/nodes/question_classifier.yaml',
+            'metadata/nodes/parameter_extractor.yaml',
+            'metadata/nodes/knowledge_retrieval.yaml',
+            'metadata/nodes/code_executor.yaml',
+            'metadata/nodes/data_transform.yaml',
+            # Control nodes
+            'metadata/nodes/condition.yaml',
+            'metadata/nodes/switch.yaml',
+            'metadata/nodes/loop.yaml',
+            'metadata/nodes/parallel.yaml',
+            'metadata/nodes/wait.yaml',
+            'metadata/nodes/end.yaml',
+            # Action nodes
+            'metadata/nodes/send_message.yaml',
+            'metadata/nodes/http_request.yaml',
+            # Integration nodes - Data & Tools
+            'metadata/nodes/database_query.yaml',
+            'metadata/nodes/redis_operation.yaml',
+            'metadata/nodes/mcp_tool.yaml',
+            'metadata/nodes/memory_store.yaml',
+            # Integration nodes - External services
+            'metadata/nodes/dify_workflow.yaml',
+            'metadata/nodes/dify_knowledge_query.yaml',
+            'metadata/nodes/n8n_workflow.yaml',
+            'metadata/nodes/langflow_flow.yaml',
+            'metadata/nodes/coze_bot.yaml',
+        ]
+        for config_file in node_config_files:
+            try:
+                node_config = await load_resource_yaml_template_data(config_file)
+                node_name = node_config.get('name')
+                node_category = node_config.get('category', 'misc')
+                if node_name:
+                    # Use category.name format to match node type format (e.g., integration.coze_bot)
+                    full_type = f'{node_category}.{node_name}'
+                    ap.workflow_node_configs[full_type] = node_config
+            except Exception as e:
+                print(f'Failed to load node config {config_file}: {e}')