feat: add image proxy route and integrate it into media handling for improved Twitter content fetching

apps/backend/src/index.ts

@@ -13,6 +13,7 @@ const app = new Elysia({prefix: "/api"})
   .use(import("./routes/auth"))
   .use(import("./routes/post"))
   .use(import("./routes/pixiv"))
+  .use(import("./routes/proxy"))
 
   .listen(config.server.port)
   ;