feat: 账套模式全量接入 — 12个API entity_id统一走token解析链 + 前端登录选公司/切换器重签token

- 后端: kpis/bsc_layers/cash/predict/growth_quality/tax_compliance/data 的 entity_id 参数统一改为 Depends(get_entity_id)
- 前端: 拦截器删除自动附加X-Entity-Id/entity_id; 登录页公司选择器(按用户名授权过滤); 切换器改POST /auth/switch-entity重新签发token+整页刷新; ReportCenter同步改造
- 修复前后端不匹配: login-entities路由→/auth/entities; login响应entity_id取user.entity_id

backend/app/api/bsc_layers.py

@@ -4,6 +4,7 @@ from sqlalchemy.orm import Session
 from typing import List
 
 from app.database import get_db
+from app.deps import get_entity_id
 from app.auth_middleware import require_auth
 from app.models import BscLayerConfig, Entity
 
@@ -13,7 +14,7 @@ router = APIRouter(prefix="/api/cma/bsc-layers", tags=["BSC层配置"],
 
 
 @router.get("")
-def list_bsc_layers(entity_id: int = Query(1, description="企业ID"), db: Session = Depends(get_db)):
+def list_bsc_layers(entity_id: int = Depends(get_entity_id), db: Session = Depends(get_db)):
     """获取某企业的BSC四层权重配置"""
     # 验证企业存在
     entity = db.query(Entity).filter(Entity.id == entity_id).first()