added comments

src/app/api/proxy/saveParserBackend/[[...path]]/route.ts

@@ -4,10 +4,12 @@ import { redirectRequest, responseToOPTIONS as respondToOPTIONS } from '@/app/ap
 import { PROXY_PATHS } from '@/app/api/proxy/paths'
 import { appConfig } from '@/lib/configLoader'
 
+// Forwards the incoming request to the save parser backend.
 async function redirect(req: NextRequest): Promise<NextResponse> {
     return await redirectRequest(req, PROXY_PATHS.saveParserBackend, appConfig.services.saveParserBackend.url)
 }
 
+// handlers for each request method on this route
 export const GET = redirect
 export const POST = redirect
 export const PUT = redirect