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/crawler/gxgp_spider.py

@@ -2,11 +2,12 @@ import json
 import random
 import time
 from datetime import datetime
-from typing import List, Optional
+
 import httpx
+
 from app.config import settings
 from app.crawler.base import BaseSpider, CrawlResult, PipelineConfig
-from app.crawler.parsers import parse_gxgp_api_response, extract_pagination
+from app.crawler.parsers import extract_pagination, parse_gxgp_api_response
 
 
 class GXGPSpider(BaseSpider):
@@ -27,8 +28,8 @@ class GXGPSpider(BaseSpider):
             mark_sent=False,
         )
 
-    async def crawl(self, sources: Optional[List[str]] = None,
-                    max_pages: Optional[int] = None) -> CrawlResult:
+    async def crawl(self, sources: list[str] | None = None,
+                    max_pages: int | None = None) -> CrawlResult:
         if max_pages is None:
             max_pages = settings.crawler_max_pages
         if sources is None:
@@ -88,7 +89,7 @@ class GXGPSpider(BaseSpider):
         )
 
     async def _fetch_page(self, client: httpx.AsyncClient, source_code: str,
-                          category_id: int, page_no: int) -> Optional[dict]:
+                          category_id: int, page_no: int) -> dict | None:
         payload = {
             "keyword": "",
             "publishDateBegin": "",
@@ -102,7 +103,7 @@ class GXGPSpider(BaseSpider):
             "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36",
             "Content-Type": "application/json;charset=UTF-8",
             "Origin": self.base_url,
-            "Referer": f"{self.base_url}/site/category?parentId={category_id}&childrenCode={source_code}",
+            "Referer": f"{self.base_url}/site/category?parentId={category_id}&childrenCode={source_code}",  # noqa: E501
         }
         response = await client.post(
             self.announcement_api, json=payload, headers=headers