feat(backend): implement v2 domain slice and live smoke

backend/query-api/src/routes/health.js

@@ -1,4 +1,5 @@
 import { Router } from 'express';
+import { checkDatabaseHealth, isDatabaseConfigured } from '../services/db.js';
 
 export const healthRouter = Router();
 
@@ -13,3 +14,32 @@ function healthHandler(req, res) {
 
 healthRouter.get('/health', healthHandler);
 healthRouter.get('/healthz', healthHandler);
+
+healthRouter.get('/readyz', async (req, res) => {
+  if (!isDatabaseConfigured()) {
+    return res.status(503).json({
+      ok: false,
+      service: 'krow-query-api',
+      status: 'DATABASE_NOT_CONFIGURED',
+      requestId: req.requestId,
+    });
+  }
+
+  try {
+    const ok = await checkDatabaseHealth();
+    return res.status(ok ? 200 : 503).json({
+      ok,
+      service: 'krow-query-api',
+      status: ok ? 'READY' : 'DATABASE_UNAVAILABLE',
+      requestId: req.requestId,
+    });
+  } catch (error) {
+    return res.status(503).json({
+      ok: false,
+      service: 'krow-query-api',
+      status: 'DATABASE_UNAVAILABLE',
+      details: { message: error.message },
+      requestId: req.requestId,
+    });
+  }
+});

backend/query-api/src/routes/query.js

@@ -0,0 +1,138 @@
+import { Router } from 'express';
+import { AppError } from '../lib/errors.js';
+import { requireAuth, requirePolicy } from '../middleware/auth.js';
+import {
+  getAssignmentAttendance,
+  getOrderDetail,
+  getStaffReviewSummary,
+  listFavoriteStaff,
+  listOrders,
+} from '../services/query-service.js';
+
+const defaultQueryService = {
+  getAssignmentAttendance,
+  getOrderDetail,
+  getStaffReviewSummary,
+  listFavoriteStaff,
+  listOrders,
+};
+
+function requireUuid(value, field) {
+  if (!/^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i.test(value)) {
+    throw new AppError('VALIDATION_ERROR', `${field} must be a UUID`, 400, { field });
+  }
+  return value;
+}
+
+export function createQueryRouter(queryService = defaultQueryService) {
+  const router = Router();
+
+  router.get(
+    '/tenants/:tenantId/orders',
+    requireAuth,
+    requirePolicy('orders.read', 'order'),
+    async (req, res, next) => {
+      try {
+        const tenantId = requireUuid(req.params.tenantId, 'tenantId');
+        const orders = await queryService.listOrders({
+          tenantId,
+          businessId: req.query.businessId,
+          status: req.query.status,
+          limit: req.query.limit,
+          offset: req.query.offset,
+        });
+        return res.status(200).json({
+          items: orders,
+          requestId: req.requestId,
+        });
+      } catch (error) {
+        return next(error);
+      }
+    }
+  );
+
+  router.get(
+    '/tenants/:tenantId/orders/:orderId',
+    requireAuth,
+    requirePolicy('orders.read', 'order'),
+    async (req, res, next) => {
+      try {
+        const order = await queryService.getOrderDetail({
+          tenantId: requireUuid(req.params.tenantId, 'tenantId'),
+          orderId: requireUuid(req.params.orderId, 'orderId'),
+        });
+        return res.status(200).json({
+          ...order,
+          requestId: req.requestId,
+        });
+      } catch (error) {
+        return next(error);
+      }
+    }
+  );
+
+  router.get(
+    '/tenants/:tenantId/businesses/:businessId/favorite-staff',
+    requireAuth,
+    requirePolicy('business.favorite-staff.read', 'staff'),
+    async (req, res, next) => {
+      try {
+        const items = await queryService.listFavoriteStaff({
+          tenantId: requireUuid(req.params.tenantId, 'tenantId'),
+          businessId: requireUuid(req.params.businessId, 'businessId'),
+          limit: req.query.limit,
+          offset: req.query.offset,
+        });
+        return res.status(200).json({
+          items,
+          requestId: req.requestId,
+        });
+      } catch (error) {
+        return next(error);
+      }
+    }
+  );
+
+  router.get(
+    '/tenants/:tenantId/staff/:staffId/review-summary',
+    requireAuth,
+    requirePolicy('staff.reviews.read', 'staff'),
+    async (req, res, next) => {
+      try {
+        const summary = await queryService.getStaffReviewSummary({
+          tenantId: requireUuid(req.params.tenantId, 'tenantId'),
+          staffId: requireUuid(req.params.staffId, 'staffId'),
+          limit: req.query.limit,
+        });
+        return res.status(200).json({
+          ...summary,
+          requestId: req.requestId,
+        });
+      } catch (error) {
+        return next(error);
+      }
+    }
+  );
+
+  router.get(
+    '/tenants/:tenantId/assignments/:assignmentId/attendance',
+    requireAuth,
+    requirePolicy('attendance.read', 'attendance'),
+    async (req, res, next) => {
+      try {
+        const attendance = await queryService.getAssignmentAttendance({
+          tenantId: requireUuid(req.params.tenantId, 'tenantId'),
+          assignmentId: requireUuid(req.params.assignmentId, 'assignmentId'),
+        });
+        return res.status(200).json({
+          ...attendance,
+          requestId: req.requestId,
+        });
+      } catch (error) {
+        return next(error);
+      }
+    }
+  );
+
+  return router;
+}