Add defaultLocale, EN names, and dashboard activity endpoints.

Expose branding.defaultLocale, optional user EN name fields, and lightweight dual daily activity for orders/customers; update project context and rules.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/customers/customers.controller.ts

@@ -14,6 +14,7 @@ import { CurrentUser } from '../auth/decorators/current-user.decorator';
 import { RequireBusinessPermission } from '../auth/decorators/require-business-permission.decorator';
 import { BusinessPermissionGuard } from '../auth/guards/business-permission.guard';
 import { JwtAuthGuard } from '../auth/guards/jwt-auth.guard';
+import { DailyActivityQueryDto } from '../common/dto/daily-activity-query.dto';
 import { CustomersService } from './customers.service';
 import { CreateCustomerDto } from './dto/create-customer.dto';
 import { ListCustomersDto } from './dto/list-customers.dto';
@@ -35,6 +36,16 @@ export class CustomersController {
     return this.service.list(businessId, query, user);
   }
 
+  @Get('activity')
+  @RequireBusinessPermission('orders.read')
+  activity(
+    @Param('businessId') businessId: string,
+    @Query() query: DailyActivityQueryDto,
+    @CurrentUser() user: AuthUser,
+  ) {
+    return this.service.dailyActivity(businessId, query.days, user);
+  }
+
   @Get('search')
   @RequireBusinessPermission('orders.create')
   search(

src/customers/customers.service.ts

@@ -3,6 +3,10 @@ import { Prisma } from '@prisma/client';
 import * as bcrypt from 'bcrypt';
 import { AuthUser } from '../auth/auth.types';
 import { PermissionsService } from '../auth/permissions.service';
+import {
+  buildDualDailyActivitySeries,
+  startOfLocalDay,
+} from '../common/daily-activity';
 import { PrismaService } from '../prisma/prisma.service';
 import { CreateCustomerDto } from './dto/create-customer.dto';
 import { ListCustomersDto } from './dto/list-customers.dto';
@@ -94,6 +98,48 @@ export class CustomersService {
     };
   }
 
+  /** Lightweight daily registration + active-login counts for dashboard charts. */
+  async dailyActivity(
+    businessIdRaw: string,
+    daysRaw: number | undefined,
+    actor: AuthUser,
+  ) {
+    const businessId = BigInt(businessIdRaw);
+    await this.assertPermission(businessId, actor.id, 'orders.read');
+
+    const days = Math.min(Math.max(daysRaw ?? 30, 1), 90);
+    const from = startOfLocalDay(days - 1);
+
+    const [registeredRows, activeRows] = await Promise.all([
+      this.prisma.$queryRaw<{ day: Date; count: number }[]>(
+        Prisma.sql`
+          SELECT created_at::date AS day,
+                 COUNT(*)::int AS count
+          FROM business_customers
+          WHERE business_id = ${businessId}
+            AND created_at >= ${from}
+          GROUP BY 1
+          ORDER BY 1
+        `,
+      ),
+      this.prisma.$queryRaw<{ day: Date; count: number }[]>(
+        Prisma.sql`
+          SELECT u.last_login_at::date AS day,
+                 COUNT(*)::int AS count
+          FROM business_customers bc
+          JOIN users u ON u.id = bc.user_id
+          WHERE bc.business_id = ${businessId}
+            AND u.last_login_at IS NOT NULL
+            AND u.last_login_at >= ${from}
+          GROUP BY 1
+          ORDER BY 1
+        `,
+      ),
+    ]);
+
+    return buildDualDailyActivitySeries(days, registeredRows, activeRows);
+  }
+
   async search(
     businessIdRaw: string,
     query: SearchCustomersDto,