Add swagger, update TypeScript

packages/backend/package.json

@@ -9,6 +9,7 @@
 	},
 	"dependencies": {
 		"@elysiajs/cors": "catalog:",
+		"@elysiajs/swagger": "catalog:",
 		"common": "workspace:^",
 		"elysia": "catalog:",
 		"kysely": "catalog:",

packages/backend/src/app.ts

@@ -1,4 +1,5 @@
 import cors from "@elysiajs/cors";
+import { swagger } from "@elysiajs/swagger";
 import { AttachmentId, PieceId, RequestId, SessionId, Sha256 } from "common";
 import * as Function from "common/Function";
 import { Elysia, error, form, t } from "elysia";
@@ -11,6 +12,8 @@ const tbranded = <T>() => t.Transform(t.String())
 
 const app = new Elysia()
 
+	.use(swagger())
+
 	.use(cors({ origin: "localhost:5173" }))
 
 	.decorate("db", await initDatabase())