Implement shared public MCP federation gateway

- full-vmcp serves as public entry point at mcp.ngorse.com
- Single Keycloak client (public-mcp) for all external tools
- authServerConfig proxies auth to Keycloak
- state-docs-vmcp becomes internal-only (no auth required)
- Shared OIDC config for token validation
- All external clients authenticate once at gateway

manifest/overlays/production/vmcp-servers/full-vmcp-ingress.yaml

@@ -13,6 +13,12 @@ spec:
   entryPoints:
     - websecure
   routes:
+    - kind: Rule
+      match: Host(`mcp.ngorse.com`)
+      services:
+        - name: vmcp-full-vmcp
+          namespace: toolhive-system
+          port: 4483
     - kind: Rule
       match: Host(`full-vmcp.olb42.com`)
       services:

manifest/overlays/production/vmcp-servers/full-vmcp.yaml

@@ -21,16 +21,15 @@ spec:
   incomingAuth:
     type: oidc
     oidcConfigRef:
-      name: full-vmcp-oidc
-      audience: http://full-vmcp.toolhive-system.svc.cluster.local:4483
+      name: public-mcp-oidc
   authServerConfig:
-    issuer: https://full-vmcp.ngorse.com
+    issuer: https://mcp.ngorse.com
     upstreamProviders:
       - name: keycloak
         type: oidc
         oidcConfig:
           issuerUrl: https://cloak.olb42.com/realms/home-lab
-          clientId: toolhive-full-vmcp
+          clientId: public-mcp
   config:
     aggregation:
       conflictResolution: prefix

manifest/overlays/production/vmcp-servers/kustomization.yaml

@@ -4,8 +4,8 @@ kind: Kustomization
 namespace: toolhive-system
 
 resources:
+  - oidcconfig-public-mcp.yaml
   - oidcconfig-state-docs-vmcp.yaml
-  - oidcconfig-full-vmcp.yaml
   - full-vmcp.yaml
   - full-vmcp-ingress.yaml
   - full-vmcp-ngorse-ingress.yaml

manifest/overlays/production/vmcp-servers/oidcconfig-public-mcp.yaml

@@ -1,13 +1,13 @@
 apiVersion: toolhive.stacklok.dev/v1beta1
 kind: MCPOIDCConfig
 metadata:
-  name: full-vmcp-oidc
+  name: public-mcp-oidc
   namespace: toolhive-system
 spec:
   type: inline
   inline:
-    issuer: https://full-vmcp.ngorse.com
-    clientId: toolhive-full-vmcp
+    issuer: https://mcp.ngorse.com
+    clientId: public-mcp
     clientSecretRef:
-      name: toolhive-full-vmcp-secret
+      name: public-mcp-secret
       key: client-secret

manifest/overlays/production/vmcp-servers/state-docs-vmcp.yaml

@@ -14,18 +14,7 @@ spec:
   embeddingServerRef:
     name: homelab-embedding
   incomingAuth:
-    type: oidc
-    oidcConfigRef:
-      name: state-docs-vmcp-oidc
-      audience: state-docs-vmcp
-  authServerConfig:
-    issuer: https://state-docs.ngorse.com
-    upstreamProviders:
-      - name: keycloak
-        type: oidc
-        oidcConfig:
-          issuerUrl: https://cloak.olb42.com/realms/home-lab
-          clientId: state-docs-vmcp
+    type: anonymous
   config:
     aggregation:
       conflictResolution: prefix