feat(gateway): wire adapter factories + DI tokens alongside existing providers

Co-Authored-By: Claude Opus 4.6 <[email protected]>

apps/gateway/src/memory/memory.module.ts

@@ -1,11 +1,13 @@
 import { Global, Module } from '@nestjs/common';
-import { createMemory, type Memory } from '@mosaic/memory';
+import { createMemory, type Memory, createMemoryAdapter, type MemoryAdapter } from '@mosaic/memory';
 import type { Db } from '@mosaic/db';
 import { DB } from '../database/database.module.js';
 import { MEMORY } from './memory.tokens.js';
 import { MemoryController } from './memory.controller.js';
 import { EmbeddingService } from './embedding.service.js';
 
+export const MEMORY_ADAPTER = 'MEMORY_ADAPTER';
+
 @Global()
 @Module({
   providers: [
@@ -14,9 +16,13 @@ import { EmbeddingService } from './embedding.service.js';
       useFactory: (db: Db): Memory => createMemory(db),
       inject: [DB],
     },
+    {
+      provide: MEMORY_ADAPTER,
+      useFactory: (): MemoryAdapter => createMemoryAdapter({ type: 'pgvector' }),
+    },
     EmbeddingService,
   ],
   controllers: [MemoryController],
-  exports: [MEMORY, EmbeddingService],
+  exports: [MEMORY, MEMORY_ADAPTER, EmbeddingService],
 })
 export class MemoryModule {}