Wire IMBI_INTERNAL_API_URL for the new imbi-mcp split

The imbi-mcp submodule bump in this PR moves the in-cluster API URL
from IMBI_API_URL to IMBI_INTERNAL_API_URL; imbi-assistant uses the
same env var for the same role. The default of http://localhost:8000
is correct for the all-in-one image, but make the wiring explicit so
helm split-service mode (mcp/assistant) can override it cleanly.

- runtime/env-file: declare IMBI_INTERNAL_API_URL=http://localhost:8000
- helm: surface service.internalApiUrl and emit it into the configmap

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: gmr

helm/imbi/templates/configmap.yaml

@@ -6,6 +6,12 @@ metadata:
     {{- include "imbi.labels" . | nindent 4 }}
 data:
   IMBI_ASSISTANT_ENABLED: {{ .Values.assistant.enabled | quote }}
+  # Internal upstream URL used by imbi-mcp and imbi-assistant for
+  # service-to-service calls to imbi-api. Distinct from the API's
+  # public URL. Defaults to the in-pod loopback for "all" mode; set
+  # service.internalApiUrl when running imbi-mcp or imbi-assistant
+  # as separate pods.
+  IMBI_INTERNAL_API_URL: {{ .Values.service.internalApiUrl | quote }}
   IMBI_EMAIL_ENABLED: {{ .Values.email.enabled | quote }}
   {{- if .Values.email.enabled }}
   IMBI_EMAIL_SMTP_HOST: {{ .Values.email.smtp.host | quote }}

helm/imbi/values.yaml

@@ -12,6 +12,11 @@ replicaCount: 1
 # Use the matching .service.<name>.replicas value to scale that service.
 service:
   mode: all
+  # Internal upstream URL imbi-mcp and imbi-assistant use to reach
+  # imbi-api. The default works for "all" and "api" modes; override
+  # when running "mcp" or "assistant" as separate pods (e.g.
+  # http://imbi-api.<namespace>.svc.cluster.local:8000).
+  internalApiUrl: "http://localhost:8000"
   api:
     replicas: 1
   assistant:

runtime/env-file

@@ -1,6 +1,11 @@
 CLICKHOUSE_URL="clickhouse+http://default:password@clickhouse:8123/imbi"
 IMBI_AUTH_ENCRYPTION_KEY="dev-encryption-key-change-in-prod"
 IMBI_AUTH_JWT_SECRET="dev-jwt-secret-change-in-production"
+# Internal upstream URL used by imbi-mcp and imbi-assistant for
+# service-to-service calls to imbi-api. Distinct from IMBI_API_URL
+# (the API's public URL). Default targets the in-pod loopback used
+# by the all-in-one image.
+IMBI_INTERNAL_API_URL="http://localhost:8000"
 IMBI_EMAIL_SMTP_HOST="mailpit"
 IMBI_EMAIL_SMTP_PORT="1025"
 IMBI_EMAIL_SMTP_USE_TLS="false"