Add public user-products storefront API and website docs.

Expose published customer listings under /tenants/:host/user-products (list, search, details, technical-info) and document them in the website API pack.

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

src/user-products/user-products.public.controller.ts

@@ -0,0 +1,26 @@
+import { Controller, Get, Param, Query } from '@nestjs/common';
+import { ListPublicUserProductsDto } from './dto/user-product.dto';
+import { UserProductsService } from './user-products.service';
+
+@Controller('tenants/:host/user-products')
+export class PublicUserProductsController {
+  constructor(private readonly service: UserProductsService) {}
+
+  @Get()
+  list(
+    @Param('host') host: string,
+    @Query() query: ListPublicUserProductsDto,
+  ) {
+    return this.service.listPublic(host, query);
+  }
+
+  @Get(':slug/technical-info')
+  getTechnicalInfo(@Param('host') host: string, @Param('slug') slug: string) {
+    return this.service.getPublicTechnicalInfoBySlug(host, slug);
+  }
+
+  @Get(':slug')
+  getBySlug(@Param('host') host: string, @Param('slug') slug: string) {
+    return this.service.getPublicBySlug(host, slug);
+  }
+}