Add GET /i/:id/:secret hotlink image decrypt stream.

backend/src/main.ts

@@ -1,4 +1,4 @@
-import { ValidationPipe } from '@nestjs/common';
+import { RequestMethod, ValidationPipe } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { NestFactory } from '@nestjs/core';
 import { NestExpressApplication } from '@nestjs/platform-express';
@@ -12,7 +12,9 @@ import { HttpMethod } from './types/HttpMethod';
 async function bootstrap() {
     const app = await NestFactory.create<NestExpressApplication>(AppModule, { bodyParser: false });
 
-    app.setGlobalPrefix('api');
+    app.setGlobalPrefix('api', {
+        exclude: [{ path: 'i/:id/:secret', method: RequestMethod.GET }]
+    });
 
     const configService = app.get(ConfigService);
     const altchaService = app.get(AltchaService);