feat(PIT-revamp): minor doc improvements

backend/src/ee/routes/v1/snapshot-router.ts

@@ -85,7 +85,9 @@ export const registerSnapshotRouter = async (server: FastifyZodProvider) => {
     },
     onRequest: verifyAuth([AuthMode.JWT, AuthMode.API_KEY, AuthMode.IDENTITY_ACCESS_TOKEN]),
     handler: async (req) => {
-      throw new Error("This endpoint is deprecated and no longer available");
+      throw new Error(
+        "This endpoint is deprecated. Please use the new PIT recovery system. More information is available at: https://infisical.com/docs/documentation/platform/pit-recovery."
+      );
 
       const secretSnapshot = await server.services.snapshot.rollbackSnapshot({
         actor: req.permission.type,