Regenerate proto files for mc/ module path

Raw descriptor bytes in .pb.go files were corrupted by the sed-based
module path rename (string length changed, breaking protobuf binary
encoding). Regenerated with protoc to fix.

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.${system};
-      version = "0.1.0";
+      version = "1.1.0";
     in
     {
       packages.${system} = {

gen/mc_proxy/v1/admin.pb.go

@@ -1449,7 +1449,7 @@ const file_proto_mc_proxy_v1_admin_proto_rawDesc = "" +
 	"\x0eListL7Policies\x12\".mc_proxy.v1.ListL7PoliciesRequest\x1a#.mc_proxy.v1.ListL7PoliciesResponse\x12P\n" +
 	"\vAddL7Policy\x12\x1f.mc_proxy.v1.AddL7PolicyRequest\x1a .mc_proxy.v1.AddL7PolicyResponse\x12Y\n" +
 	"\x0eRemoveL7Policy\x12\".mc_proxy.v1.RemoveL7PolicyRequest\x1a#.mc_proxy.v1.RemoveL7PolicyResponse\x12J\n" +
-	"\tGetStatus\x12\x1d.mc_proxy.v1.GetStatusRequest\x1a\x1e.mc_proxy.v1.GetStatusResponseB:Z8git.wntrmute.dev/mc/mc-proxy/gen/mc_proxy/v1;mcproxyv1b\x06proto3"
+	"\tGetStatus\x12\x1d.mc_proxy.v1.GetStatusRequest\x1a\x1e.mc_proxy.v1.GetStatusResponseB8Z6git.wntrmute.dev/mc/mc-proxy/gen/mc_proxy/v1;mcproxyv1b\x06proto3"
 
 var (
 	file_proto_mc_proxy_v1_admin_proto_rawDescOnce sync.Once