feat: continue work

Signed-off-by: Avior <github@avior.me>

src/env.d.ts

@@ -1,6 +1,5 @@
 /// <reference path="../.astro/types.d.ts" />
 /// <reference types="astro/client" />
-/// <reference types="./libs/ResponseBuilder" />
 
 interface ImportMetaEnv {
 	PRUSASLICER_PATH?: string
@@ -21,6 +20,14 @@ declare namespace App {
 		 * authentification key is the api key or the session token
 		 */
 		authKey?: string
-		responseBuilder?: ResponseBuilder
+		responseBuilder: {
+			body(body: string | Buffer | object | null | undefined): this
+			headers(headers: HeadersInit ): this
+			addHeader(key: string, value: string): this
+			addHeaders(headers: Record<string, string>): this
+			removeHeader(key: string): this
+			status(status: number): this
+			build(): Response
+		} // ./libs/ResponseBuilder object
 	}
 }