feat(phase5): 解耦与收尾清理

- core/redis_client.py 移除 scheduler 耦合，lifespan 由 core/app.py 组合（Redis→调度器→Redis）
- main.py 改从 core.app 导入 create_app
- 删除 apps/、extensions/ 目录；utils 删除已迁移垫片与死代码 formatter.py
- 新增 deploy/（nginx、supervisor）、scripts/（init_db、seed）、logs/（结构化日志落盘）
- core/app.py 接入 core.logger setup_logging
- 更新 CLAUDE.md 反映 core/shared/modules 新结构

Co-Authored-By: Claude <noreply@anthropic.com>

core/app.py

@@ -8,7 +8,9 @@
 
 """应用工厂：create_app 组装中间件、路由、异常处理与 lifespan。"""
 
+import logging
 import time
+from contextlib import asynccontextmanager
 
 from fastapi import FastAPI
 from fastapi.exceptions import RequestValidationError
@@ -18,6 +20,7 @@ from starlette.responses import JSONResponse
 
 from config.app import FASTAPI_DEBUG
 from core.exceptions import AuthorizationException, BusinessException
+from core.logger import setup_logging
 from core.middleware import (
     register_middleware,
     register_cros,
@@ -28,12 +31,31 @@ from core.redis_client import redis_lifespan, redis_middleware
 from routers import register_router
 
 
+@asynccontextmanager
+async def _combined_lifespan(app: FastAPI):
+    """组合 lifespan：先起 Redis，再启动定时任务调度器；退出时先停调度器再关 Redis。"""
+    async with redis_lifespan(app):
+        # 懒加载调度器，避免 core → 业务模块顶层依赖
+        from modules.job.scheduler import init_scheduler, shutdown_scheduler
+
+        job_count = init_scheduler()
+        logging.getLogger(__name__).info(
+            f"定时任务调度器已启动，加载 {job_count} 个任务")
+        try:
+            yield
+        finally:
+            shutdown_scheduler()
+
+
 def create_app() -> FastAPI:
+    # 初始化结构化日志（控制台 + logs/app.log）
+    setup_logging()
+
     app = FastAPI(
         title="FastAPI",
         description="FastAPI",
         version="v1",
-        lifespan=redis_lifespan,
+        lifespan=_combined_lifespan,
     )
 
     # 注册跨域中间件