fix: 修复设置系统脱节、队列计数漂移、资源泄露等全量问题

- 统一设置系统：create_scheduler_service 读取 DB 设置覆盖默认值
- 修复 ProxyRepository.update_score 误删所有无效代理的 SQL
- ValidationQueue：修复 Worker 计数漂移与启动恢复任务饿死
- SchedulerService：移除 drain() 阻塞，主循环可正常响应 stop
- TaskService：在调度器周期内自动清理过期任务，防止内存泄漏
- lifespan/conftest：规范关闭顺序，消除 Event loop closed 警告
- Repository：异常日志增加 exc_info，今日新增按 created_at 统计
- ValidatorService：防止 HTTP session 重复关闭，移除 SOCKS 多余 close
- 前端：补全 pluginsStore.isEmpty，ProxyList 最低分数上限改为 100
- 删除 config.py 中冗余的 cors_origins_list property

app/api/routes/proxies.py

@@ -6,7 +6,6 @@ from app.services.scheduler_service import SchedulerService
 from app.models.schemas import ProxyListRequest, BatchDeleteRequest
 from app.api.deps import get_proxy_service, get_scheduler_service
 from app.api.common import success_response, error_response, format_proxy
-from app.core.log import logger
 
 router = APIRouter(prefix="/api/proxies", tags=["proxies"])
 
@@ -16,13 +15,9 @@ async def get_stats(
     proxy_service: ProxyService = Depends(get_proxy_service),
     scheduler_service: SchedulerService = Depends(get_scheduler_service),
 ):
-    try:
-        stats = await proxy_service.get_stats()
-        stats["scheduler_running"] = scheduler_service.running
-        return success_response("获取统计信息成功", stats)
-    except Exception as e:
-        logger.error(f"Get stats failed: {e}")
-        return error_response("获取统计信息失败", 500)
+    stats = await proxy_service.get_stats()
+    stats["scheduler_running"] = scheduler_service.running
+    return success_response("获取统计信息成功", stats)
 
 
 @router.post("")
@@ -30,40 +25,32 @@ async def list_proxies(
     request: ProxyListRequest,
     service: ProxyService = Depends(get_proxy_service),
 ):
-    try:
-        proxies, total = await service.list_proxies(
-            page=request.page,
-            page_size=request.page_size,
-            protocol=request.protocol,
-            min_score=request.min_score,
-            max_score=request.max_score,
-            sort_by=request.sort_by,
-            sort_order=request.sort_order,
-        )
-        return success_response(
-            "获取代理列表成功",
-            {
-                "list": [format_proxy(p) for p in proxies],
-                "total": total,
-                "page": request.page,
-                "page_size": request.page_size,
-            },
-        )
-    except Exception as e:
-        logger.error(f"List proxies failed: {e}")
-        return error_response("获取代理列表失败", 500)
+    proxies, total = await service.list_proxies(
+        page=request.page,
+        page_size=request.page_size,
+        protocol=request.protocol,
+        min_score=request.min_score,
+        max_score=request.max_score,
+        sort_by=request.sort_by,
+        sort_order=request.sort_order,
+    )
+    return success_response(
+        "获取代理列表成功",
+        {
+            "list": [format_proxy(p) for p in proxies],
+            "total": total,
+            "page": request.page,
+            "page_size": request.page_size,
+        },
+    )
 
 
 @router.get("/random")
 async def get_random_proxy(service: ProxyService = Depends(get_proxy_service)):
-    try:
-        proxy = await service.get_random_proxy()
-        if not proxy:
-            return error_response("没有找到可用的代理", 404)
-        return success_response("获取随机代理成功", format_proxy(proxy))
-    except Exception as e:
-        logger.error(f"Get random proxy failed: {e}")
-        return error_response("获取随机代理失败", 500)
+    proxy = await service.get_random_proxy()
+    if not proxy:
+        return error_response("没有找到可用的代理", 404)
+    return success_response("获取随机代理成功", format_proxy(proxy))
 
 
 @router.get("/export/{fmt}")
@@ -93,12 +80,8 @@ async def export_proxies(
 
 @router.delete("/{ip}/{port}")
 async def delete_proxy(ip: str, port: int, service: ProxyService = Depends(get_proxy_service)):
-    try:
-        await service.delete_proxy(ip, port)
-        return success_response("删除代理成功")
-    except Exception as e:
-        logger.error(f"Delete proxy failed: {e}")
-        return error_response("删除代理失败", 500)
+    await service.delete_proxy(ip, port)
+    return success_response("删除代理成功")
 
 
 @router.post("/batch-delete")
@@ -106,20 +89,12 @@ async def batch_delete(
     request: BatchDeleteRequest,
     service: ProxyService = Depends(get_proxy_service),
 ):
-    try:
-        proxies = [(item.ip, item.port) for item in request.proxies]
-        deleted = await service.batch_delete(proxies)
-        return success_response(f"批量删除 {deleted} 个代理成功", {"deleted_count": deleted})
-    except Exception as e:
-        logger.error(f"Batch delete failed: {e}")
-        return error_response("批量删除失败", 500)
+    proxies = [(item.ip, item.port) for item in request.proxies]
+    deleted = await service.batch_delete(proxies)
+    return success_response(f"批量删除 {deleted} 个代理成功", {"deleted_count": deleted})
 
 
 @router.delete("/clean-invalid")
 async def clean_invalid(service: ProxyService = Depends(get_proxy_service)):
-    try:
-        count = await service.clean_invalid()
-        return success_response(f"清理了 {count} 个无效代理", {"deleted_count": count})
-    except Exception as e:
-        logger.error(f"Clean invalid failed: {e}")
-        return error_response("清理无效代理失败", 500)
+    count = await service.clean_invalid()
+    return success_response(f"清理了 {count} 个无效代理", {"deleted_count": count})