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/search/presentation/controllers/saved-search.controller.ts

@@ -9,7 +9,7 @@ import {
   Query,
   UseGuards,
 } from '@nestjs/common';
-import { type CommandBus, type QueryBus } from '@nestjs/cqrs';
+import { CommandBus, QueryBus } from '@nestjs/cqrs';
 import {
   ApiTags,
   ApiOperation,
@@ -27,7 +27,7 @@ import { type SavedSearchDetail } from '../../application/queries/get-saved-sear
 import { GetSavedSearchQuery } from '../../application/queries/get-saved-search/get-saved-search.query';
 import { type SavedSearchListResult } from '../../application/queries/get-saved-searches/get-saved-searches.handler';
 import { GetSavedSearchesQuery } from '../../application/queries/get-saved-searches/get-saved-searches.query';
-import { type CreateSavedSearchDto, type UpdateSavedSearchDto, type SavedSearchListDto } from '../dto/saved-search.dto';
+import { CreateSavedSearchDto, UpdateSavedSearchDto, SavedSearchListDto } from '../dto/saved-search.dto';
 
 @ApiTags('saved-searches')
 @ApiBearerAuth('JWT')