diff --git a/app/api/lifespan.py b/app/api/lifespan.py
index 1b859d5..ceda5b2 100644
--- a/app/api/lifespan.py
+++ b/app/api/lifespan.py
@@ -38,4 +38,5 @@ async def lifespan(app: FastAPI):
 
     # 关闭调度器
     await scheduler_service.stop()
+    await scheduler_service.validation_queue.validator.close()
     logger.info("API server shutdown")
diff --git a/app/api/routes/scheduler.py b/app/api/routes/scheduler.py
index fa3b903..29a2f54 100644
--- a/app/api/routes/scheduler.py
+++ b/app/api/routes/scheduler.py
@@ -49,7 +49,7 @@ async def stop_scheduler(scheduler: SchedulerService = Depends(get_scheduler_ser
 @router.post("/validate-now")
 async def validate_now(scheduler: SchedulerService = Depends(get_scheduler_service)):
     try:
-        scheduler.validate_all_now()
+        await scheduler.validate_all_now()
         return success_response("已开始全量验证", {"started": True})
     except Exception as e:
         logger.error(f"Validate now failed: {e}")
diff --git a/app/core/plugin_system/base.py b/app/core/plugin_system/base.py
index 0390e3b..8a4919a 100644
--- a/app/core/plugin_system/base.py
+++ b/app/core/plugin_system/base.py
@@ -1,20 +1,7 @@
 """插件基类 - 所有爬虫插件必须继承此基类"""
 from abc import ABC, abstractmethod
-from dataclasses import dataclass
 from typing import List, Dict, Any
-
-
-@dataclass
-class ProxyRaw:
-    """爬虫产出的原始代理数据"""
-    ip: str
-    port: int
-    protocol: str = "http"
-
-    def __post_init__(self):
-        self.protocol = self.protocol.lower().strip()
-        if self.protocol not in ("http", "https", "socks4", "socks5"):
-            self.protocol = "http"
+from app.models.domain import ProxyRaw
 
 
 class BaseCrawlerPlugin(ABC):
diff --git a/app/core/tasks/queue.py b/app/core/tasks/queue.py
index 1336f0e..0cbf5a7 100644
--- a/app/core/tasks/queue.py
+++ b/app/core/tasks/queue.py
@@ -40,6 +40,8 @@ class ValidationQueue:
         self._workers: list[asyncio.Task] = []
         self._running = False
         self._db_lock = asyncio.Lock()
+        self._pending_count = 0
+        self._condition = asyncio.Condition()
 
         # 统计
         self.valid_count = 0
@@ -58,6 +60,8 @@ class ValidationQueue:
             logger.info(f"ValidationQueue recovered {recovered} interrupted tasks")
         if pending:
             logger.info(f"ValidationQueue has {pending} pending tasks to process")
+        async with self._condition:
+            self._pending_count = pending
 
         for i in range(self.worker_count):
             self._workers.append(asyncio.create_task(self._worker_loop(i)))
@@ -86,6 +90,9 @@ class ValidationQueue:
             async with get_db() as db:
                 inserted = await self.task_repo.insert_batch(db, proxies)
         if inserted:
+            async with self._condition:
+                self._pending_count += inserted
+                self._condition.notify_all()
             for _ in range(min(inserted, self.worker_count)):
                 self._signal.put_nowait(None)
 
@@ -94,12 +101,9 @@ class ValidationQueue:
 
     async def drain(self):
         """等待队列中当前所有 pending 任务处理完毕"""
-        while True:
-            async with get_db() as db:
-                count = await self.task_repo.get_pending_count(db)
-            if count == 0:
-                break
-            await asyncio.sleep(0.5)
+        async with self._condition:
+            if self._pending_count > 0:
+                await self._condition.wait_for(lambda: self._pending_count == 0)
 
     async def _worker_loop(self, worker_id: int):
         while True:
@@ -143,6 +147,10 @@ class ValidationQueue:
                     await self.task_repo.complete_task(db, task["id"], False, 0.0)
                     self.invalid_count += 1
                     logger.debug(f"ValidationQueue: invalid {proxy.ip}:{proxy.port}")
+        async with self._condition:
+            self._pending_count = max(0, self._pending_count - 1)
+            if self._pending_count == 0:
+                self._condition.notify_all()
 
     def reset_stats(self):
         self.valid_count = 0
diff --git a/app/plugins/fate0.py b/app/plugins/fate0.py
index 1c359b8..60ebc70 100644
--- a/app/plugins/fate0.py
+++ b/app/plugins/fate0.py
@@ -6,9 +6,10 @@ from app.core.log import logger
 
 
 class Fate0Plugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     name = "fate0"
-    display_name = "Fate0聚合源"
-    description = "从 GitHub 持续更新的高质量代理聚合列表"
+    display_name = "Fate0聚合站"
+    description = "来自 GitHub 持续更新的高质量代理聚合列表"
 
     def __init__(self):
         super().__init__()
@@ -34,5 +35,5 @@ class Fate0Plugin(BaseHTTPPlugin):
                 except Exception:
                     continue
         if results:
-            logger.info(f"{self.display_name} 解析完成，获得 {len(results)} 个潜在代理")
+            logger.info(f"{self.display_name} 解析完成，获取 {len(results)} 个潜在代理")
         return results
diff --git a/app/plugins/ip89.py b/app/plugins/ip89.py
index 2b99add..9276a9e 100644
--- a/app/plugins/ip89.py
+++ b/app/plugins/ip89.py
@@ -7,6 +7,7 @@ from app.core.log import logger
 
 
 class Ip89Plugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     name = "ip89"
     display_name = "89免费代理"
     description = "从 89ip.cn 爬取免费代理"
@@ -35,5 +36,5 @@ class Ip89Plugin(BaseHTTPPlugin):
                         results.append(ProxyRaw(ip, int(port), "http"))
 
         if results:
-            logger.info(f"{self.display_name} 解析完成，获得 {len(results)} 个潜在代理")
+            logger.info(f"{self.display_name} 解析完成，获取 {len(results)} 个潜在代理")
         return results
diff --git a/app/plugins/kuaidaili.py b/app/plugins/kuaidaili.py
index 74efed8..6828c3c 100644
--- a/app/plugins/kuaidaili.py
+++ b/app/plugins/kuaidaili.py
@@ -9,6 +9,7 @@ VALID_PROTOCOLS = ("http", "https", "socks4", "socks5")
 
 
 class KuaiDaiLiPlugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     name = "kuaidaili"
     display_name = "快代理"
     description = "从快代理网站爬取免费代理"
@@ -45,5 +46,5 @@ class KuaiDaiLiPlugin(BaseHTTPPlugin):
                         results.append(ProxyRaw(ip, int(port), protocol))
 
         if results:
-            logger.info(f"{self.display_name} 解析完成，获得 {len(results)} 个潜在代理")
+            logger.info(f"{self.display_name} 解析完成，获取 {len(results)} 个潜在代理")
         return results
diff --git a/app/plugins/proxylist_download.py b/app/plugins/proxylist_download.py
index 4c7883c..48e84f1 100644
--- a/app/plugins/proxylist_download.py
+++ b/app/plugins/proxylist_download.py
@@ -5,6 +5,7 @@ from app.core.log import logger
 
 
 class ProxyListDownloadPlugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     name = "proxylist_download"
     display_name = "ProxyListDownload"
     description = "从 ProxyListDownload API 获取代理"
diff --git a/app/plugins/proxyscrape.py b/app/plugins/proxyscrape.py
index e02bd60..f41a027 100644
--- a/app/plugins/proxyscrape.py
+++ b/app/plugins/proxyscrape.py
@@ -6,19 +6,20 @@ from app.core.log import logger
 
 
 class ProxyScrapePlugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     """
-    从 ProxyScrape 公开 API 获取代理。
-    覆盖 http/https/socks4/socks5 全协议，专门用于测试插件系统的可扩展性。
+    从 ProxyScrape 公开 API 获取代理库
+    覆盖 http/https/socks4/socks5 全协议，专门用于测试插件系统的可扩展性
     """
 
     name = "proxyscrape"
-    display_name = "ProxyScrape测试源"
+    display_name = "ProxyScrape测试站"
     description = "从 ProxyScrape API 获取各类型代理（HTTP/HTTPS/SOCKS4/SOCKS5），用于测试架构扩展"
     enabled = True
 
     def __init__(self):
         super().__init__()
-        # 使用多个公开 GitHub 代理列表作为源，稳定性较高
+        # 使用多个公开 GitHub 代理列表作为源，稳定性较差
         self.urls = [
             ("http", "https://raw.githubusercontent.com/monosans/proxy-list/main/proxies/http.txt"),
             ("https", "https://raw.githubusercontent.com/monosans/proxy-list/main/proxies/https.txt"),
@@ -71,5 +72,5 @@ class ProxyScrapePlugin(BaseHTTPPlugin):
                 ip = f"{random.randint(1, 223)}.{random.randint(0, 255)}.{random.randint(0, 255)}.{random.randint(1, 254)}"
                 port = random.randint(1024, 65535)
                 test_proxies.append(ProxyRaw(ip, port, protocol))
-        logger.info(f"生成 {len(test_proxies)} 个测试代理: HTTP/HTTPS/SOCKS4/SOCKS5 各 3 个")
+        logger.info(f"生成 {len(test_proxies)} 个测试代理 HTTP/HTTPS/SOCKS4/SOCKS5 各 3 个")
         return test_proxies
diff --git a/app/plugins/speedx.py b/app/plugins/speedx.py
index 0e86e0c..27804d1 100644
--- a/app/plugins/speedx.py
+++ b/app/plugins/speedx.py
@@ -6,8 +6,9 @@ from app.core.log import logger
 
 
 class SpeedXPlugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     name = "speedx"
-    display_name = "SpeedX代理源"
+    display_name = "SpeedX代理库"
     description = "从 SpeedX GitHub 仓库获取 SOCKS 代理列表"
 
     def __init__(self):
@@ -47,5 +48,5 @@ class SpeedXPlugin(BaseHTTPPlugin):
                     results.append(ProxyRaw(ip, int(port), protocol))
 
         if results:
-            logger.info(f"{self.display_name} 解析完成，获得 {len(results)} 个潜在代理")
+            logger.info(f"{self.display_name} 解析完成，获取 {len(results)} 个潜在代理")
         return results
diff --git a/app/plugins/yundaili.py b/app/plugins/yundaili.py
index c5bc2f2..8f91746 100644
--- a/app/plugins/yundaili.py
+++ b/app/plugins/yundaili.py
@@ -9,6 +9,7 @@ VALID_PROTOCOLS = ("http", "https", "socks4", "socks5")
 
 
 class YunDaiLiPlugin(BaseHTTPPlugin):
+    default_config = {"max_pages": 5}
     name = "yundaili"
     display_name = "云代理"
     description = "从云代理网站爬取免费代理"
@@ -47,5 +48,5 @@ class YunDaiLiPlugin(BaseHTTPPlugin):
                         results.append(ProxyRaw(ip, int(port), protocol))
 
         if results:
-            logger.info(f"{self.display_name} 解析完成，获得 {len(results)} 个潜在代理")
+            logger.info(f"{self.display_name} 解析完成，获取 {len(results)} 个潜在代理")
         return results
diff --git a/app/repositories/proxy_repo.py b/app/repositories/proxy_repo.py
index 0ee418c..f6adffa 100644
--- a/app/repositories/proxy_repo.py
+++ b/app/repositories/proxy_repo.py
@@ -190,7 +190,12 @@ class ProxyRepository:
             params.append(max_score)
 
         where_clause = " AND ".join(conditions)
-        order_clause = f"{sort_by} {sort_order}"
+        allowed_sort_by = {"ip", "port", "protocol", "score", "last_check"}
+        allowed_sort_order = {"ASC", "DESC"}
+        if sort_by not in allowed_sort_by or sort_order.upper() not in allowed_sort_order:
+            order_clause = "last_check DESC"
+        else:
+            order_clause = f"{sort_by} {sort_order.upper()}"
         offset = (page - 1) * page_size
 
         count_query = f"SELECT COUNT(*) FROM proxies WHERE {where_clause}"
@@ -268,7 +273,8 @@ class ProxyRepository:
     async def clean_expired(db: aiosqlite.Connection, days: int) -> int:
         try:
             await db.execute(
-                "DELETE FROM proxies WHERE last_check < datetime('now', '-{} days')".format(days)
+                "DELETE FROM proxies WHERE last_check < datetime('now', '-' || ? || ' days')",
+                (days,),
             )
             await db.commit()
             return db.total_changes
diff --git a/app/repositories/task_repo.py b/app/repositories/task_repo.py
index b682019..1a89052 100644
--- a/app/repositories/task_repo.py
+++ b/app/repositories/task_repo.py
@@ -33,22 +33,16 @@ class ValidationTaskRepository:
         try:
             async with db.execute(
                 """
-                SELECT id, ip, port, protocol FROM validation_tasks
-                WHERE status = 'pending'
-                ORDER BY id ASC
-                LIMIT 1
+                UPDATE validation_tasks
+                SET status = 'processing', updated_at = CURRENT_TIMESTAMP
+                WHERE id = (SELECT id FROM validation_tasks WHERE status = 'pending' ORDER BY id ASC LIMIT 1)
+                RETURNING id, ip, port, protocol
                 """
             ) as cursor:
                 row = await cursor.fetchone()
                 if not row:
                     return None
-                task_id = row[0]
-                await db.execute(
-                    "UPDATE validation_tasks SET status = 'processing', updated_at = CURRENT_TIMESTAMP WHERE id = ?",
-                    (task_id,),
-                )
-                await db.commit()
-                return {"id": task_id, "ip": row[1], "port": row[2], "protocol": row[3]}
+                return {"id": row[0], "ip": row[1], "port": row[2], "protocol": row[3]}
         except Exception as e:
             logger.error(f"acquire_pending failed: {e}")
             return None
@@ -126,7 +120,8 @@ class ValidationTaskRepository:
     async def cleanup_old(db: aiosqlite.Connection, days: int = 7) -> int:
         try:
             await db.execute(
-                "DELETE FROM validation_tasks WHERE updated_at < datetime('now', '-{} days')".format(days)
+                "DELETE FROM validation_tasks WHERE updated_at < datetime('now', '-' || ? || ' days')",
+                (days,),
             )
             await db.commit()
             return db.total_changes
diff --git a/app/services/plugin_service.py b/app/services/plugin_service.py
index 8071cac..8fb9f39 100644
--- a/app/services/plugin_service.py
+++ b/app/services/plugin_service.py
@@ -1,4 +1,5 @@
 """插件业务服务"""
+import asyncio
 from datetime import datetime
 from typing import List, Optional
 from app.core.db import get_db
@@ -108,14 +109,13 @@ class PluginService:
     async def run_all_plugins(self) -> List[ProxyRaw]:
         """执行所有启用插件的爬取"""
         all_results: List[ProxyRaw] = []
-        for plugin in registry.list_plugins():
-            if not plugin.enabled:
+        tasks = [self.run_plugin(plugin.name) for plugin in registry.list_plugins() if plugin.enabled]
+        results_list = await asyncio.gather(*tasks, return_exceptions=True)
+        for results in results_list:
+            if isinstance(results, Exception):
+                logger.error(f"Run all plugins error: {results}")
                 continue
-            try:
-                results = await self.run_plugin(plugin.name)
-                all_results.extend(results)
-            except Exception as e:
-                logger.error(f"Run all plugins error at {plugin.name}: {e}")
+            all_results.extend(results)
         # 去重
         seen = set()
         unique = []
diff --git a/app/services/scheduler_service.py b/app/services/scheduler_service.py
index aedfd1a..9cae791 100644
--- a/app/services/scheduler_service.py
+++ b/app/services/scheduler_service.py
@@ -20,12 +20,14 @@ class SchedulerService:
         self.proxy_repo = proxy_repo
         self.interval_minutes = 30
         self.running = False
+        self._stop_event = asyncio.Event()
         self._task: asyncio.Task | None = None
 
     async def start(self):
         if self.running:
             logger.warning("Scheduler already running")
             return
+        self._stop_event.clear()
         self.running = True
         await self.validation_queue.start()
         self._task = asyncio.create_task(self._run_loop())
@@ -33,6 +35,7 @@ class SchedulerService:
 
     async def stop(self):
         self.running = False
+        self._stop_event.set()
         if self._task:
             self._task.cancel()
             try:
@@ -55,10 +58,10 @@ class SchedulerService:
             except Exception as e:
                 logger.error(f"Scheduler loop error: {e}")
             # 等待下一次
-            for _ in range(self.interval_minutes * 60):
-                if not self.running:
-                    break
-                await asyncio.sleep(1)
+            try:
+                await asyncio.wait_for(self._stop_event.wait(), timeout=self.interval_minutes * 60)
+            except asyncio.TimeoutError:
+                pass
 
     async def _do_validate_all(self):
         """验证数据库中所有存量代理"""
diff --git a/app/services/validator_service.py b/app/services/validator_service.py
index 7aeaf19..55537ee 100644
--- a/app/services/validator_service.py
+++ b/app/services/validator_service.py
@@ -25,8 +25,24 @@ class ValidatorService:
     ):
         self.timeout = timeout
         self.connect_timeout = connect_timeout
+        self.max_concurrency = max_concurrency
         self.semaphore = asyncio.Semaphore(max_concurrency)
 
+        # 共享 HTTP/HTTPS ClientSession
+        self._http_connector = aiohttp.TCPConnector(
+            ssl=False,
+            limit=max_concurrency,
+            limit_per_host=max_concurrency,
+            force_close=False,
+        )
+        self._timeout = aiohttp.ClientTimeout(
+            total=timeout, connect=connect_timeout
+        )
+        self._http_session = aiohttp.ClientSession(
+            connector=self._http_connector,
+            timeout=self._timeout,
+        )
+
     def _get_test_url(self, protocol: str) -> str:
         """获取测试 URL"""
         urls = self.TEST_URLS.get(protocol.lower(), self.TEST_URLS["http"])
@@ -53,20 +69,14 @@ class ValidatorService:
     async def _validate_http(self, ip: str, port: int, protocol: str, start: float) -> Tuple[bool, float]:
         """验证 HTTP/HTTPS 代理"""
         proxy_url = f"http://{ip}:{port}"
-        connector = aiohttp.TCPConnector(ssl=False, limit=0, force_close=True)
-        timeout = aiohttp.ClientTimeout(total=self.timeout, connect=self.connect_timeout)
         test_url = self._get_test_url(protocol)
 
-        try:
-            async with aiohttp.ClientSession(connector=connector, timeout=timeout) as session:
-                async with session.get(test_url, proxy=proxy_url, allow_redirects=True) as response:
-                    if response.status in (200, 301, 302):
-                        latency = round((time.time() - start) * 1000, 2)
-                        logger.info(f"HTTP valid: {ip}:{port} ({protocol}) {latency}ms")
-                        return True, latency
-                    return False, 0.0
-        finally:
-            await connector.close()
+        async with self._http_session.get(test_url, proxy=proxy_url, allow_redirects=True) as response:
+            if response.status in (200, 301, 302):
+                latency = round((time.time() - start) * 1000, 2)
+                logger.info(f"HTTP valid: {ip}:{port} ({protocol}) {latency}ms")
+                return True, latency
+            return False, 0.0
 
     async def _validate_socks(self, ip: str, port: int, protocol: str, start: float) -> Tuple[bool, float]:
         """验证 SOCKS4/SOCKS5 代理"""
@@ -95,3 +105,7 @@ class ValidatorService:
                     return False, 0.0
         finally:
             await connector.close()
+
+    async def close(self):
+        """关闭共享的 HTTP ClientSession"""
+        await self._http_session.close()
diff --git a/tests/__pycache__/conftest.cpython-311.pyc b/tests/__pycache__/conftest.cpython-311.pyc
deleted file mode 100644
index be7c139..0000000
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diff --git a/tests/conftest.py b/tests/conftest.py
index dc299a7..5f30404 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,7 +1,7 @@
 """pytest 配置文件和 fixtures"""
 import pytest
-import asyncio
-from typing import AsyncGenerator, Generator
+import pytest_asyncio
+from typing import AsyncGenerator
 from httpx import AsyncClient, ASGITransport
 
 from app.api import create_app
@@ -9,24 +9,17 @@ from app.core.db import init_db, get_db
 from app.repositories.proxy_repo import ProxyRepository
 
 
-@pytest.fixture(scope="session")
-def event_loop() -> Generator[asyncio.AbstractEventLoop, None, None]:
-    """创建事件循环"""
-    loop = asyncio.get_event_loop_policy().new_event_loop()
-    yield loop
-    loop.close()
-
-
-@pytest.fixture(scope="session")
+@pytest_asyncio.fixture(scope="function")
 async def app():
     """创建应用实例"""
     # 初始化测试数据库
     await init_db()
     app = create_app()
-    return app
+    async with app.router.lifespan_context(app):
+        yield app
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def client(app) -> AsyncGenerator[AsyncClient, None]:
     """创建异步 HTTP 客户端"""
     transport = ASGITransport(app=app)
@@ -34,20 +27,20 @@ async def client(app) -> AsyncGenerator[AsyncClient, None]:
         yield client
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def db():
     """获取数据库连接"""
     async with get_db() as db:
         yield db
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def proxy_repo():
     """获取代理仓库"""
     return ProxyRepository()
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def sample_proxy(db, proxy_repo):
     """创建一个测试代理"""
     await proxy_repo.insert_or_update(db, "192.168.1.1", 8080, "http", 50)
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deleted file mode 100644
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index 4162714..0000000
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diff --git a/tests/integration/__pycache__/test_scheduler_api.cpython-311.pyc b/tests/integration/__pycache__/test_scheduler_api.cpython-311.pyc
deleted file mode 100644
index 170990e..0000000
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diff --git a/tests/integration/__pycache__/test_settings_api.cpython-311.pyc b/tests/integration/__pycache__/test_settings_api.cpython-311.pyc
deleted file mode 100644
index 265741f..0000000
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diff --git a/tests/integration/test_proxies_api.py b/tests/integration/test_proxies_api.py
index 06b494c..e9bbd05 100644
--- a/tests/integration/test_proxies_api.py
+++ b/tests/integration/test_proxies_api.py
@@ -121,14 +121,14 @@ class TestProxiesAPI:
         """测试 GET /api/proxies/export/csv"""
         response = await client.get("/api/proxies/export/csv")
         assert response.status_code == 200
-        assert response.headers["content-type"] == "text/csv"
+        assert response.headers["content-type"].startswith("text/csv")
 
     @pytest.mark.asyncio
     async def test_export_proxies_txt(self, client):
         """测试 GET /api/proxies/export/txt"""
         response = await client.get("/api/proxies/export/txt")
         assert response.status_code == 200
-        assert response.headers["content-type"] == "text/plain"
+        assert response.headers["content-type"].startswith("text/plain")
 
     @pytest.mark.asyncio
     async def test_export_proxies_json(self, client):
diff --git a/tests/unit/__pycache__/test_models.cpython-311.pyc b/tests/unit/__pycache__/test_models.cpython-311.pyc
deleted file mode 100644
index b72e1ad..0000000
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diff --git a/tests/unit/__pycache__/test_repositories.cpython-311.pyc b/tests/unit/__pycache__/test_repositories.cpython-311.pyc
deleted file mode 100644
index dec936f..0000000
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