feat(api): add inquiries, leads, and agents modules for Agent Portal

Build three new DDD modules following existing CQRS patterns:
- Inquiries: CRUD endpoints for buyer consultation requests with agent notification support
- Leads: Full lead lifecycle management with status state machine and conversion tracking
- Agents: Quality score calculation (event-driven on review changes) and dashboard stats API

All modules include unit tests (14 test files, all 797 tests pass).

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

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

@@ -0,0 +1,61 @@
+import { Controller, Get, Param, Post, UseGuards } from '@nestjs/common';
+import { type CommandBus, type QueryBus } from '@nestjs/cqrs';
+import {
+  ApiBearerAuth,
+  ApiOperation,
+  ApiParam,
+  ApiResponse,
+  ApiTags,
+} from '@nestjs/swagger';
+import {
+  type JwtPayload,
+  CurrentUser,
+  JwtAuthGuard,
+  RolesGuard,
+  Roles,
+} 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';
+
+@ApiTags('agents')
+@Controller('agents')
+export class AgentsController {
+  constructor(
+    private readonly commandBus: CommandBus,
+    private readonly queryBus: QueryBus,
+  ) {}
+
+  @ApiBearerAuth('JWT')
+  @ApiOperation({ summary: 'Get agent dashboard stats' })
+  @ApiResponse({ status: 200, description: 'Agent dashboard data' })
+  @ApiResponse({ status: 401, description: 'Unauthorized' })
+  @ApiResponse({ status: 403, description: 'Forbidden — only agents' })
+  @ApiResponse({ status: 404, description: 'Agent profile not found' })
+  @UseGuards(JwtAuthGuard, RolesGuard)
+  @Roles('AGENT')
+  @Get('me/dashboard')
+  async getDashboard(
+    @CurrentUser() user: JwtPayload,
+  ): Promise<AgentDashboardData> {
+    return this.queryBus.execute(new GetAgentDashboardQuery(user.sub));
+  }
+
+  @ApiBearerAuth('JWT')
+  @ApiOperation({ summary: 'Recalculate quality score (admin/system)' })
+  @ApiParam({ name: 'agentId', description: 'Agent ID' })
+  @ApiResponse({ status: 201, description: 'Quality score recalculated' })
+  @ApiResponse({ status: 401, description: 'Unauthorized' })
+  @ApiResponse({ status: 403, description: 'Forbidden — only admins' })
+  @UseGuards(JwtAuthGuard, RolesGuard)
+  @Roles('ADMIN')
+  @Post(':agentId/recalculate-score')
+  async recalculateScore(
+    @Param('agentId') agentId: string,
+  ): Promise<{ message: string }> {
+    await this.commandBus.execute(
+      new RecalculateQualityScoreCommand(agentId),
+    );
+    return { message: 'Quality score recalculated' };
+  }
+}