```

refactor(core): 重构核心模块结构并更新导入路径

- 将配置相关的设置从 app.core.config 移除
- 将常量定义从 app.core.constants 移除
- 将数据库相关功能从 app.core.database 移除
- 将基础数据库模型从 app.core.db_base 移除
- 将敏感信息掩码功能从 app.core.masking 移除
- 将中间件定义从 app.core.middleware 移除
- 将操作保护功能从 app.core.operation_guard 移除
- 将分页工具从 app.core.pagination 移除
- 将请求上下文管理从 app.core.request_context 移除
- 将调度器功能从 app.core.scheduler 移除
- 将安全认证逻辑从 app.core.security 移除
- 将任务队列相关功能从 app.core.task_queue 移除
- 将时间工具从 app.core.time 移除
- 更新 alembic 配置中的 Base 模型导入路径
- 更新各模块中对重构后组件的引用路径
```

app/modules/reports/routes.py

@@ -3,16 +3,15 @@ from datetime import date
 from fastapi import APIRouter, Depends
 from sqlalchemy.orm import Session
 
+from app.core.background.task_queue import enqueue_daily_brief_push, enqueue_project_weekly_push
 from app.core.database import get_db
-from app.core.operation_guard import require_operations_enabled
-from app.core.security import ApiPrincipal, require_api_key
-from app.core.task_queue import enqueue_daily_brief_push, enqueue_project_weekly_push
+from app.core.security import ApiPrincipal, require_api_key, require_operations_enabled
+from app.modules.reports.constants import ReportPushKey
 from app.modules.reports.schemas import (
     PushReportRequest,
     ReportResponse,
     WorkReportGenerateRequest,
 )
-from app.modules.reports.constants import ReportPushKey
 from app.modules.reports.service import ReportService
 
 router = APIRouter(dependencies=[Depends(require_api_key)])

app/modules/reports/service.py

@@ -6,8 +6,8 @@ from sqlalchemy import func, or_, select
 from sqlalchemy.orm import Session
 
 from app.core.constants import ActorValue
-from app.core.pagination import bounded_limit
-from app.core.time import utc_now
+from app.core.http.pagination import bounded_limit
+from app.core.utils.time import utc_now
 from app.modules.audit.constants import AuditAction, AuditSource, AuditTargetType
 from app.modules.audit.schemas import AuditLogCreate
 from app.modules.audit.service import AuditService