fix(api): resolve NestJS DI + ValidationPipe bugs from type-only imports

- Remove `type` modifier from imports used as DI constructor params
  across ~235 files (@Injectable, @Controller, @Module, @Catch,
  @CommandHandler, @QueryHandler, @EventsHandler, @WebSocketGateway).
  TypeScript emitDecoratorMetadata strips type-only imports, leaving
  Reflect.metadata with Function placeholder and breaking Nest DI.
- Fix controllers: DTOs used with @Body/@Query/@Param must be runtime
  imports so ValidationPipe can whitelist properties. Previously
  returned 400 "property X should not exist" on every request.
- Register ProjectsModule in AppModule (was defined but never wired).
- Add approve()/reject() methods to TransferListingEntity referenced by
  ModerateTransferListingHandler.
- Export BankTransferConfirmedEvent from payments barrel for
  subscription activation handler.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/api/src/modules/metrics/infrastructure/metrics.service.ts

@@ -1,6 +1,6 @@
 import { Injectable } from '@nestjs/common';
 import { InjectMetric } from '@willsoto/nestjs-prometheus';
-import { type Counter, type Gauge, type Histogram } from 'prom-client';
+import { Counter, Gauge, Histogram } from 'prom-client';
 import {
   GOODGO_LISTINGS_CREATED_TOTAL,
   GOODGO_PAYMENTS_PROCESSED_TOTAL,

apps/api/src/modules/metrics/presentation/controllers/web-vitals.controller.ts

@@ -7,8 +7,8 @@ import {
   Logger,
 } from '@nestjs/common';
 import { ApiTags, ApiOperation, ApiResponse } from '@nestjs/swagger';
-import { type MetricsService } from '../../infrastructure/metrics.service';
-import { type WebVitalsBatchDto } from '../dto/web-vitals.dto';
+import { MetricsService } from '../../infrastructure/metrics.service';
+import { WebVitalsBatchDto } from '../dto/web-vitals.dto';
 
 /**
  * Public endpoint for receiving Core Web Vitals from the frontend.