Add blog post admin CRUD API.

Expose JWT-protected /blog-posts endpoints for draft creation, listing, update, and delete.

backend/src/AppModule.ts

@@ -20,6 +20,7 @@ import {
 } from './config';
 import { validate } from './config/validate';
 import { AuthModule } from './modules/auth/AuthModule';
+import { BlogModule } from './modules/blog/BlogModule';
 import { EncryptionModule } from './modules/encryption/EncryptionModule';
 import { HealthCheckModule } from './modules/healthCheck/HealthCheckModule';
 import { MoneroWalletModule } from './modules/moneroWallet/MoneroWalletModule';
@@ -85,6 +86,7 @@ import { Config } from './types/Config';
         HealthCheckModule,
         EncryptionModule,
         AuthModule,
+        BlogModule,
         ProductsModule,
         ShopSettingsModule,
         SimplexModule,