MCPServer podTemplateMetadataOverrides.labels feature is aliased with Deployment labels

[ghaskins]

Problem Description

For the following MCPServer object

apiVersion: toolhive.stacklok.dev/v1alpha1
kind: MCPServer
metadata:
  name: fetch
spec:
  image: ghcr.io/stackloklabs/gofetch/server
  mcpPort: 8080
  port: 8080
  proxyMode: streamable-http
  proxyPort: 8080
  resources:
    limits:
      cpu: 100m
      memory: 128Mi
    requests:
      cpu: 50m
      memory: 64Mi
  transport: streamable-http
  trustProxyHeaders: false
  resourceOverrides:
    proxyDeployment:
      labels:
        foo: "true"
      podTemplateMetadataOverrides:
        labels:
          bar: "true"

I would expect to see a Deployment object like:

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    foo: "true"
spec:
  template:
    metadata:
      labels:
        bar: true

However, what I actually get is:

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    bar: "true"
spec:
  template:
    metadata:
      labels:

There are two problems:

1. The PodSpec template.metadata.labels are completely missing
2. The Deployment metadata labels have been aliased with the labels intended for the PodSpec template.