feat(app): 移除内置agents并添加CORS支持和技能上传优化

移除了agents/registry.json中的所有内置agents配置，将agents数组清空。
为web应用添加了CORS中间件支持，允许指定的前端地址跨域访问。
重构了技能上传功能，增加了LLM重写机制，自动规范化上传的技能格式。
新增了工具名称提取逻辑，从技能正文中自动识别Required Tools段落。
更新了技能学习候选者和草稿的载荷结构，添加评估报告统计信息。
修改了意图路由技能的说明，改进任务状态管理逻辑。

app-instance/backend/beaver/skills/learning/replay.py

@@ -162,18 +162,23 @@ class ReplayRunner:
             registry=loaded.tool_registry,
             policy=self.policy,
         )
-        result = await self.agent_loop.process_direct(
-            request.task_text,
-            provider_bundle=request.provider_bundle,
-            include_skill_assembly=False,
-            include_tools=True,
-            pinned_skill_names=request.pinned_skill_names,
-            pinned_skill_contexts=request.pinned_skill_contexts,
-            max_tool_iterations=int(request.model_settings.get("max_tool_iterations") or 4),
-            temperature=float(request.model_settings.get("temperature") or 0.0),
-            source="skill_replay_eval",
-            tool_executor_override=replay_executor,
-        )
+        direct_kwargs = {
+            "provider_bundle": request.provider_bundle,
+            "include_skill_assembly": False,
+            "include_tools": True,
+            "pinned_skill_names": request.pinned_skill_names,
+            "pinned_skill_contexts": request.pinned_skill_contexts,
+            "max_tool_iterations": int(request.model_settings.get("max_tool_iterations") or 4),
+            "temperature": float(request.model_settings.get("temperature") or 0.0),
+            "source": "skill_replay_eval",
+            "tool_executor_override": replay_executor,
+        }
+        try:
+            result = await self.agent_loop.process_direct(request.task_text, **direct_kwargs)
+        except RuntimeError as exc:
+            if not _is_process_direct_disabled_while_running(exc) or not hasattr(self.agent_loop, "submit_direct"):
+                raise
+            result = await self.agent_loop.submit_direct(request.task_text, **direct_kwargs)
         return {
             "case_id": request.case_id,
             "arm": request.arm,
@@ -188,6 +193,14 @@ class ReplayRunner:
         }
 
 
+def _is_process_direct_disabled_while_running(exc: RuntimeError) -> bool:
+    message = str(exc)
+    return (
+        "AgentLoop.process_direct() is disabled while run() is active" in message
+        and "submit tasks via submit_direct() instead" in message
+    )
+
+
 def _side_effects_from_traces(traces: list[dict[str, Any]]) -> list[dict[str, Any]]:
     effects: list[dict[str, Any]] = []
     for trace in traces: