feat(agents): add public agent profile page at /agents/[id]

Implements a public-facing agent profile page with:
- Backend: new GET /agents/:agentId/profile public API endpoint with
  agent info, active listings, quality score, and review stats
- Frontend: server-rendered profile page with generateMetadata for SEO,
  JSON-LD structured data (RealEstateAgent schema), breadcrumbs
- Agent profile displays bio, service areas, quality score gauge,
  active listing cards, reviews with star ratings, and contact CTA
- Mobile responsive layout with sticky contact sidebar on desktop
- Vietnamese UI text throughout, consistent with existing patterns

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/api/src/modules/agents/presentation/controllers/agents.controller.ts

@@ -1,4 +1,4 @@
-import { Controller, Get, Param, Post, UseGuards } from '@nestjs/common';
+import { Controller, Get, NotFoundException, Param, Post, UseGuards } from '@nestjs/common';
 import { type CommandBus, type QueryBus } from '@nestjs/cqrs';
 import {
   ApiBearerAuth,
@@ -16,7 +16,8 @@ import {
 } from '@modules/auth';
 import { RecalculateQualityScoreCommand } from '../../application/commands/recalculate-quality-score/recalculate-quality-score.command';
 import { GetAgentDashboardQuery } from '../../application/queries/get-agent-dashboard/get-agent-dashboard.query';
-import { type AgentDashboardData } from '../../domain/repositories/agent.repository';
+import { GetAgentPublicProfileQuery } from '../../application/queries/get-agent-public-profile/get-agent-public-profile.query';
+import { type AgentDashboardData, type AgentPublicProfileData } from '../../domain/repositories/agent.repository';
 
 @ApiTags('agents')
 @Controller('agents')
@@ -41,6 +42,23 @@ export class AgentsController {
     return this.queryBus.execute(new GetAgentDashboardQuery(user.sub));
   }
 
+  @ApiOperation({ summary: 'Get public agent profile' })
+  @ApiParam({ name: 'agentId', description: 'Agent ID' })
+  @ApiResponse({ status: 200, description: 'Agent public profile data' })
+  @ApiResponse({ status: 404, description: 'Agent not found' })
+  @Get(':agentId/profile')
+  async getPublicProfile(
+    @Param('agentId') agentId: string,
+  ): Promise<AgentPublicProfileData> {
+    const profile = await this.queryBus.execute(
+      new GetAgentPublicProfileQuery(agentId),
+    );
+    if (!profile) {
+      throw new NotFoundException('Không tìm thấy môi giới');
+    }
+    return profile;
+  }
+
   @ApiBearerAuth('JWT')
   @ApiOperation({ summary: 'Recalculate quality score (admin/system)' })
   @ApiParam({ name: 'agentId', description: 'Agent ID' })