feat(workflow): add edge-tool routing and realtime runtime

backend/routes/assistants.py

@@ -37,6 +37,14 @@ def _validate_workflow(body: AssistantUpsert) -> None:
         return
     body.graph = normalize_graph(body.graph or {})
     errors = validate_graph(body.graph)
+    settings = body.graph.get("settings") or {}
+    graph_runtime_mode = str(settings.get("runtimeMode") or "pipeline")
+    if graph_runtime_mode != body.runtime_mode:
+        errors.append("工作流全局运行模式与 Assistant runtimeMode 不一致")
+    graph_realtime_id = str(settings.get("defaultRealtimeResourceId") or "")
+    bound_realtime_id = str(body.model_resource_ids.get("Realtime") or "")
+    if graph_realtime_id != bound_realtime_id:
+        errors.append("工作流 Realtime 模型与 Assistant Realtime 绑定不一致")
     declared_variables = set(body.dynamic_variable_definitions)
     for node in body.graph.get("nodes") or []:
         node_id = str(node.get("id") or "")
@@ -80,6 +88,7 @@ async def _validate_workflow_references(
     resource_expectations: dict[str, str] = {}
     vision_resource_ids: set[str] = set()
     for key, capability in (
+        ("defaultRealtimeResourceId", "Realtime"),
         ("defaultLlmResourceId", "LLM"),
         ("defaultAsrResourceId", "ASR"),
         ("defaultTtsResourceId", "TTS"),