chore(async-infra): 异步基础层 + 工具链 + 清理

异步基础层(core/):
- db.py   aiosqlite + WAL:读路径无锁并发、写路径 asyncio.Lock 串行,
          busy_timeout 自旋——实现「读写同时进行」(旧实现用 RLock 全读串行)
- http_client.py  aiohttp 连接池 + 有界重试(5xx 重试 / 4xx 不重试)+
          响应体上限 + 流式接口;按事件循环隔离 session(支持迁移期双 loop)

工具链:
- pyproject.toml   ruff(E/F/W/I/B/UP/C4/ASYNC/S/RUF) + pyright(basic) + pytest(asyncio auto)
- requirements-fastapi.txt  FastAPI/aiohttp/aiosqlite/aiofiles 等目标栈
- requirements-dev.txt      开发依赖(pytest/ruff/pyright)

清理:删除无用脚本 _csscheck.py 与产物标记 _css_ok.txt/_pkg_ok.txt,同步 .gitignore

验证:pytest 10/10(含「写 200 条同时 4 读协程零异常」并发用例);
ruff All checks passed;pyright 0 errors。
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snowy-yang committed 2026-09-26 00:24:00 +08:00
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commit 9f56f68b66
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@@ -7,6 +7,7 @@ FastAPI 侧改为直接返回 JSONResponse,但**包体结构完全一致**:
error: {"status": sc, "success": false, "message": msg, ["error_code": ...]}
这样前端无需任何改动即可同时对接两个框架。
"""
from typing import Any
from fastapi.responses import JSONResponse
@@ -24,7 +25,7 @@ def success(data: Any = None, message: str = 'success', status_code: int = 200)
return JSONResponse(content=body, status_code=status_code)
def error(message: str, status_code: int = 400, error_code: str = None) -> JSONResponse:
def error(message: str, status_code: int = 400, error_code: str | None = None) -> JSONResponse:
"""错误响应(对应 Flask APIResponse.error)"""
body = {
'status': status_code,