feat: KPI通用化数据层改造

- 新增entities表（企业实体）+ 种子数据（酣客/博海）
- kpi_definitions新增entity_id字段（DEFAULT 1，向后兼容）
- 后端API list_kpis支持可选的entity_id过滤参数
- 新增 GET /api/cma/entities API返回企业列表
- 43个现有KPI自动获得entity_id=1（酣客）
- 前端重新构建并部署

backend/app/main.py

@@ -5,7 +5,7 @@ from fastapi.middleware.cors import CORSMiddleware
 from fastapi.responses import JSONResponse
 from dotenv import load_dotenv
 from app.database import init_db
-from app.api import auth, kpis, templates, maps, dashboard, data, alerts, ai_analysis, alert_rules, users, thresholds, notifications, permissions, action_plans, alignment, org, objectives, versions, budget, cost, predict, reports, security, knowledge, bot_bridge, customer_dashboard, deviation_push, budget_generate, knowledge_articles, kpi_causality, data_quality, bi_reports
+from app.api import auth, kpis, templates, maps, dashboard, data, alerts, ai_analysis, alert_rules, users, thresholds, notifications, permissions, action_plans, alignment, org, objectives, versions, budget, cost, predict, reports, security, knowledge, bot_bridge, customer_dashboard, deviation_push, budget_generate, knowledge_articles, kpi_causality, data_quality, bi_reports, entities
 from app.utils.cache import clear_all as clear_cache, delete as delete_cache
 from scripts.erp_sync import run_sync as run_erp_sync
 from app.auth_middleware import require_auth
@@ -62,6 +62,7 @@ app.include_router(knowledge_articles.router)
 app.include_router(kpi_causality.router)
 app.include_router(data_quality.router)
 app.include_router(bi_reports.router)
+app.include_router(entities.router)
 
 @app.exception_handler(Exception)
 async def global_exception_handler(request: Request, exc: Exception):