chore: ruff 代码检查与修复

130 issues auto-fixed (import ordering, UP045/UP006 type annotations),
33 issues manually fixed (E712/E501/E402/E722 + N818 rename + per-file
wechat ignore for N8xx naming conventions). All 33 tests pass.

app/services/crawl_service.py

@@ -1,22 +1,22 @@
-from typing import Dict, List
+
 from app.crawler.base import BaseSpider, CrawlResult
 
 
 class CrawlService:
     def __init__(self):
-        self.spiders: Dict[str, BaseSpider] = {}
+        self.spiders: dict[str, BaseSpider] = {}
 
     def register(self, spider: BaseSpider):
         self.spiders[spider.name] = spider
 
-    async def run_all(self) -> List[CrawlResult]:
+    async def run_all(self) -> list[CrawlResult]:
         results = []
         for name, spider in self.spiders.items():
             result = await spider.crawl()
             results.append(result)
         return results
 
-    async def run_spider(self, name: str, **kwargs) -> List[CrawlResult]:
+    async def run_spider(self, name: str, **kwargs) -> list[CrawlResult]:
         spider = self.spiders.get(name)
         if spider is None:
             return [CrawlResult(
@@ -26,7 +26,7 @@ class CrawlService:
         result = await spider.crawl(**kwargs)
         return [result]
 
-    def get_spider_names(self) -> List[str]:
+    def get_spider_names(self) -> list[str]:
         return list(self.spiders.keys())
 
     def get_pipeline_config(self, name: str):