Bump flake.nix version to 0.7.5

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

flake.nix

@@ -10,7 +10,7 @@
     let
       system = "x86_64-linux";
       pkgs = nixpkgs.legacyPackages.${system};
-      version = "0.6.0";
+      version = "0.7.5";
     in
     {
       packages.${system} = {

internal/agent/deploy.go

@@ -34,6 +34,9 @@ func (a *Agent) Deploy(ctx context.Context, req *mcpv1.DeployRequest) (*mcpv1.De
 				filtered = append(filtered, cs)
 			}
 		}
+		if len(filtered) == 0 {
+			return nil, fmt.Errorf("component %q not found in service %q", target, serviceName)
+		}
 		components = filtered
 	}
 

internal/agent/status.go

@@ -99,6 +99,12 @@ func (a *Agent) liveCheckServices(ctx context.Context) ([]*mcpv1.ServiceInfo, er
 
 			if rc, ok := runtimeByName[containerName]; ok {
 				ci.ObservedState = rc.State
+				if rc.Version != "" {
+					ci.Version = rc.Version
+				}
+				if rc.Image != "" {
+					ci.Image = rc.Image
+				}
 				if !rc.Started.IsZero() {
 					ci.Started = timestamppb.New(rc.Started)
 				}