refactor(skill-evolution): simplify config UI to 3 user-editable fields

前端配置页只保留运行间隔、陈旧阈值、归档阈值三个字段，
其余配置（enabled、model_name 等）走 config.yaml 全局默认。
后端 PUT /api/curator/config 仅保存这三个字段到 per-user skill_evolution.json。

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

offline-backend-20260512/backend/app/gateway/routers/skills.py

@@ -2329,12 +2329,12 @@ class CuratorConfigResponse(BaseModel):
 
 
 class CuratorConfigRequest(BaseModel):
-    """Payload for updating per-user skill evolution overrides.
+    """Payload for updating the three user-facing curator thresholds in skill_evolution.json.
 
-    Users may only adjust archiving thresholds. All other settings (enabled,
-    interval, model, timeouts) are global and controlled via config.yaml.
+    All other settings (enabled, model, timeouts) are controlled via config.yaml.
     """
 
+    interval_hours: int = Field(..., ge=1, description="Hours between curator runs.")
     stale_after_days: int = Field(..., ge=1, description="Days of inactivity before a skill is marked stale.")
     archive_after_days: int = Field(..., ge=1, description="Days of inactivity before a stale skill is archived.")
 
@@ -2352,11 +2352,7 @@ class CuratorLogsResponse(BaseModel):
 
 
 def _build_curator_config_response(evo) -> CuratorConfigResponse:
-    """Pure helper so both the GET route and the post-PUT refresh share one shape.
-
-    ``evo`` is a ``SkillEvolutionConfig`` instance (already merged with per-user
-    overrides if any).
-    """
+    """Pure helper so both the GET route and the post-PUT refresh share one shape."""
     return CuratorConfigResponse(
         enabled=evo.enabled,
         curator=CuratorSubConfig(
@@ -2372,8 +2368,7 @@ def _build_curator_config_response(evo) -> CuratorConfigResponse:
 
 @router.get("/curator/config", response_model=CuratorConfigResponse, summary="Get Skill Evolution Config")
 async def get_curator_config(request: Request) -> CuratorConfigResponse:
-    """Return the current curator config for the authenticated user (yaml
-    defaults + that user's overrides)."""
+    """Return the current curator config for the authenticated user (yaml defaults + per-user overrides)."""
     try:
         from deerflow.config.skill_evolution_runtime import load_skill_evolution_config_for_user
 
@@ -2386,11 +2381,9 @@ async def get_curator_config(request: Request) -> CuratorConfigResponse:
 
 @router.put("/curator/config", response_model=CuratorConfigResponse, summary="Update Skill Evolution Config")
 async def update_curator_config(body: CuratorConfigRequest, request: Request) -> CuratorConfigResponse:
-    """Persist per-user archiving thresholds to ``users/{user_id}/skill_evolution.json``.
+    """Persist the three user-facing curator thresholds to the per-user ``skill_evolution.json``.
 
-    Only ``stale_after_days`` and ``archive_after_days`` are user-editable.
-    All other settings (enabled, interval, model, timeouts) are global and
-    read from config.yaml; users cannot override them here.
+    Other settings (enabled, model, timeouts) are global and controlled via config.yaml.
     """
     try:
         from deerflow.config.skill_evolution_runtime import load_skill_evolution_config_for_user, save_user_overrides
@@ -2398,9 +2391,10 @@ async def update_curator_config(body: CuratorConfigRequest, request: Request) ->
         user_id = _current_user_id(request)
         save_user_overrides(user_id, {
             "curator": {
+                "interval_hours": body.interval_hours,
                 "stale_after_days": body.stale_after_days,
                 "archive_after_days": body.archive_after_days,
-            }
+            },
         })
         return _build_curator_config_response(load_skill_evolution_config_for_user(user_id))
     except HTTPException: