refactor: 重构聊天模块支持 SSE 断线重连及用户上下文隔离

backend/src/core/agentscope/prompts/agent_prompt.py

@@ -70,7 +70,6 @@ def _router_rules(llm_config: SystemAgentLLMConfig | None) -> list[str]:
         "- Return key_entities and constraints that are execution-relevant; low confidence -> omit rather than guess.",
         "- Set execution_mode by complexity: onestep / tool_assisted / multistep.",
         "- Set result_typing.primary to the most suitable response shape; use clarification_request only when required info is missing.",
-        "- Set ui.ui_mode and ui.ui_decision_reason based on whether structured UI improves actionability.",
         f"- task_typing.primary must use one TaskType enum: {_enum_values(TaskType)}.",
         f"- task_typing.secondary max 3 enums: {_enum_values(TaskType)}.",
         f"- result_typing.primary must use one ResultType enum: {_enum_values(ResultType)}.",

backend/src/core/agentscope/runtime/runner.py

@@ -279,7 +279,7 @@ class AgentScopeRunner:
         runtime_mode: RuntimeMode,
         work_memory: WorkProfileContent | None,
     ) -> WorkerAgentOutputLite:
-        worker_output_model = resolve_worker_output_model(router_output.ui.ui_mode)
+        worker_output_model = resolve_worker_output_model(router_output.execution_mode)
         await self._emit_step_event(
             pipeline=pipeline,
             run_input=run_input,

backend/src/core/agentscope/runtime/ui_compiler.py

@@ -51,7 +51,10 @@ def _status_badge_needed(intent: UiHintIntent, status: UiHintStatus) -> bool:
 
 
 def _status_label(status: str) -> str:
-    return status.upper()
+    normalized = status.strip().lower()
+    if not normalized:
+        return "ui.status.info"
+    return f"ui.status.{normalized}"
 
 
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