deploy DHARMA registry to neuron-prod

- Dockerfile for Go DHARMA server (registry.neuralplatform.ai/neuron-technologies/dharma)
- k8s manifests: deployment, service, ExternalSecret (Vault), IngressRoute
- Argo CD app: deploys to neuron-prod namespace
- Cloudflare tunnel rule for dharma.neurontechnologies.ai
- DNS CNAME record for dharma.neurontechnologies.ai → legion tunnel
- Vault secrets already populated (api_key, encryption_key, jwt_secret, engram_key, engram_url)
- Connects to neuron-daemon (engram) at neuron-daemon.neuron-prod.svc.cluster.local:7749

servers/legion/k8s/neuron-technologies/dharma/ingressroute.yaml

@@ -0,0 +1,18 @@
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: dharma
+  namespace: neuron-prod
+  labels:
+    app: dharma
+spec:
+  entryPoints:
+    - websecure
+  routes:
+    - match: Host(`dharma.neurontechnologies.ai`)
+      kind: Rule
+      services:
+        - name: dharma
+          port: 8765
+  tls:
+    certResolver: letsencrypt