feat(skills): 自我进化 - 软归档/恢复 + Agent 归属 + 状态分层 UI

后端:
- 新增 PUT /api/skills/custom/{name}/state 与 /pinned 软归档/恢复 + 钉选 API
- skill_manage 工具: agent 创建写 DB 归属; 删除清理 .usage.json + DB row + cascade 引用; 加 ownership 预校验
- curator 全部软归档(文件保留在 custom/), 加 reason 必填(中文), 修 user_context 跨线程传播 / 协程泄漏 / archive 文件不再移动
- LLM 评审接 ToolErrorHandlingMiddleware, 工具异常自动重试不中止本轮; 替换 create_react_agent 为 create_agent
- skill_list 按当前 agent config.yaml 的 skills 字段过滤(custom agent), lead agent 仍可见全部
- 自我进化提示词对齐 Hermes 风格: 主动询问保存, reason 强制中文且面向用户
- 控制台日志增强: 自动归档/标过时/LLM 合并/删减建议 都按条目输出原因

前端:
- 技能管理页 Tab 改「全部 / 我的」, 正确包含他人发布的 custom 技能(修复 isCustom 互斥 bug)
- 新增「过时 N / 归档 N」右侧抽屉(恢复/查看/立即归档 ⋯ 菜单)
- 新增徽章: 钉选 / 来源(Agent 创建 / 用户上传) / 使用次数展示
- 内置技能徽章修复(原 isBuiltin && isCustom 永远 false)
- 自我进化日志 run_started sentinel 在前端展示为中文分隔条
- 移除冗余 enabled 开关(归档已覆盖此能力, 减少术语)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

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

@@ -641,6 +641,96 @@ async def update_custom_skill_published(
         raise HTTPException(status_code=500, detail=f"Failed to update published state: {str(e)}")
 
 
+_ALLOWED_USER_STATES = {"active", "archived"}
+
+
+class SkillStateRequest(BaseModel):
+    """Request body for switching a custom skill's lifecycle state."""
+
+    state: str = Field(..., description="New state: 'active' (restore) or 'archived' (soft archive)")
+
+
+class SkillPinRequest(BaseModel):
+    """Request body for pinning / unpinning a custom skill."""
+
+    pinned: bool = Field(..., description="Whether to pin (true) so the curator never auto-archives this skill")
+
+
+def _reload_skill_response(skill_name: str, ownership: dict[str, Any], config: AppConfig) -> SkillResponse:
+    """Reload a single skill from disk and return its API response form."""
+    skills = get_or_new_skill_storage(app_config=config).load_skills(enabled_only=False)
+    skill = next((s for s in skills if s.name == skill_name), None)
+    if skill is None:
+        raise HTTPException(status_code=404, detail=f"Skill '{skill_name}' not found on disk")
+    return _skill_to_response(skill, ownership)
+
+
+@router.put(
+    "/skills/custom/{skill_name}/state",
+    response_model=SkillResponse,
+    summary="Update Custom Skill Lifecycle State",
+    description="Restore (active) or soft-archive a custom skill. Only the owner or admins may invoke.",
+)
+async def update_custom_skill_state(
+    skill_name: str,
+    body: SkillStateRequest,
+    request: Request,
+    config: AppConfig = Depends(get_config),
+    skill_store: SkillStore = Depends(get_skill_store),
+) -> SkillResponse:
+    try:
+        skill_name = skill_name.replace("\r\n", "").replace("\n", "")
+        if body.state not in _ALLOWED_USER_STATES:
+            raise HTTPException(
+                status_code=400,
+                detail=f"state must be one of {sorted(_ALLOWED_USER_STATES)}",
+            )
+        user_id = _current_user_id(request)
+        is_admin = _is_admin_user(request)
+        record, _mode = await _get_editable_skill_or_raise(skill_store, skill_name, user_id, is_admin=is_admin)
+
+        from deerflow.skills.usage import set_state as _usage_set_state
+
+        _usage_set_state(skill_name, body.state)
+        await refresh_skills_system_prompt_cache_async()
+        return _reload_skill_response(skill_name, record, config)
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error("Failed to update state for %s: %s", skill_name, e, exc_info=True)
+        raise HTTPException(status_code=500, detail=f"Failed to update state: {e}")
+
+
+@router.put(
+    "/skills/custom/{skill_name}/pinned",
+    response_model=SkillResponse,
+    summary="Pin or Unpin a Custom Skill",
+    description="Pin a skill so the curator never auto-archives it. Only the owner or admins may invoke.",
+)
+async def update_custom_skill_pinned(
+    skill_name: str,
+    body: SkillPinRequest,
+    request: Request,
+    config: AppConfig = Depends(get_config),
+    skill_store: SkillStore = Depends(get_skill_store),
+) -> SkillResponse:
+    try:
+        skill_name = skill_name.replace("\r\n", "").replace("\n", "")
+        user_id = _current_user_id(request)
+        is_admin = _is_admin_user(request)
+        record, _mode = await _get_editable_skill_or_raise(skill_store, skill_name, user_id, is_admin=is_admin)
+
+        from deerflow.skills.usage import set_pinned as _usage_set_pinned
+
+        _usage_set_pinned(skill_name, body.pinned)
+        return _reload_skill_response(skill_name, record, config)
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error("Failed to update pinned for %s: %s", skill_name, e, exc_info=True)
+        raise HTTPException(status_code=500, detail=f"Failed to update pinned: {e}")
+
+
 @router.get("/skills/custom/{skill_name}/history", response_model=CustomSkillHistoryResponse, summary="Get Custom Skill History")
 async def get_custom_skill_history(skill_name: str, config: AppConfig = Depends(get_config)) -> CustomSkillHistoryResponse:
     try: