OAuth discovery endpoints (/.well-known/oauth-protected-resource and
/.well-known/oauth-authorization-server) and the authorization server
paths (/oauth2/*, /login) were routing to neuron-rest, which has none
of those endpoints. MCP also uses /sse and /message directly.
All five path prefixes now route to neuron-mcp on port 8080.
Adds license deployment, service, ingress route (/license), and
Unkey + admin token secrets via ExternalSecret. Image built and
pushed by CI on merge of neuron PR #30.
Completes the three-env setup (dev was added previously). Each env has
deployments, services, ingress, PVC, ConfigMap, and ExternalSecret pulling
from Vault. Prod has larger resource limits and 10Gi PVC. Vault secret at
secret/neuron-technologies/prod seeded separately.