Initialize the API and add managed app banners.

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

src/brands/brands.controller.ts

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+import { Body, Controller, Get, Param, Patch, Post, Query } from '@nestjs/common';
+import { BrandsService } from './brands.service';
+import { AuthType } from '../common/decorators/auth.decorators';
+import { CreateBrandDto, UpdateBrandDto } from './dto/brand.dto';
+import { IsArray, IsString } from 'class-validator';
+
+class SetBrandsBody {
+  @IsArray()
+  @IsString({ each: true })
+  brandIds!: string[];
+}
+
+@Controller()
+export class BrandsController {
+  constructor(private readonly brandsService: BrandsService) {}
+
+  @AuthType('admin')
+  @Get('admin/brands')
+  list(@Query('activeOnly') activeOnly?: string) {
+    return this.brandsService.list(activeOnly === 'true');
+  }
+
+  @AuthType('admin')
+  @Post('admin/brands')
+  create(@Body() dto: CreateBrandDto) {
+    return this.brandsService.create(dto);
+  }
+
+  @AuthType('admin')
+  @Patch('admin/brands/:id')
+  update(@Param('id') id: string, @Body() dto: UpdateBrandDto) {
+    return this.brandsService.update(id, dto);
+  }
+
+  @AuthType('admin')
+  @Get('admin/customers/:customerId/brands')
+  customerBrands(@Param('customerId') customerId: string) {
+    return this.brandsService.listCustomerBrands(customerId);
+  }
+
+  @AuthType('admin')
+  @Post('admin/customers/:customerId/brands')
+  setCustomerBrands(
+    @Param('customerId') customerId: string,
+    @Body() body: SetBrandsBody,
+  ) {
+    return this.brandsService.setCustomerBrands(customerId, body.brandIds ?? []);
+  }
+}