fix tricky state issue

appview/state/state.go

···
 			if err != nil {
 				log.Println("failed to rollback policies")
 			}
-			client.RemoveRepo(user.Did, repoName)
 		}()
 
 		resp, err := client.NewRepo(user.Did, repoName, defaultBranch)

flake.nix

···
           services.tangled-knotserver = {
             enable = true;
             server = {
-              secret = "61120605bf85e8b036c922221ae0d740efb1e93a1ebe5cd71e4aca552d7d8a86";
+              secret = "ad7b32ded52fbe96e09f469a288084ee01cd12c971da87a1cbb87ef67081bd87";
               hostname = "localhost:6000";
               listenAddr = "0.0.0.0:6000";
             };