rebrand: Switchboard Core → Armature

- Rename Go module switchboard-core → armature (155+ files)
- Rename Docker image → gobha/armature
- Rename K8s resources, secrets, deployments
- Rename Prometheus metrics switchboard_* → armature_*
- Rename env vars SWITCHBOARD_ADMIN_* → ARMATURE_ADMIN_*
- Rename DB names switchboard_core* → armature*
- Update all frontend branding, notification templates, docs
- Update CI scripts, e2e tests, Keycloak realm, nginx conf
- Rename scripts/switchboard-ca.sh → scripts/armature-ca.sh
- Rename k8s/switchboard.yaml → k8s/armature.yaml
- Rename chart alerting/dashboard files
- Fix: DockerHub push uses env: binding for secret injection
- Helm chart updated (name, labels, template functions, dashboard, alerting)
- Replace favicon/icon assets with Armature brand

No functional changes. Pure mechanical rename + CI fix.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

docker-compose-keycloak.yml

@@ -6,11 +6,11 @@
 #   docker compose -f docker-compose.yml -f docker-compose-keycloak.yml up
 #
 # This extends the base docker-compose.yml to add:
-#   - Keycloak IdP with a pre-configured "switchboard" realm
-#   - Switchboard configured with AUTH_MODE=oidc pointing at Keycloak
+#   - Keycloak IdP with a pre-configured "armature" realm
+#   - Armature configured with AUTH_MODE=oidc pointing at Keycloak
 #
 # After startup:
-#   Switchboard:  http://localhost:3000
+#   Armature:  http://localhost:3000
 #   Keycloak:     http://localhost:8180  (admin / admin)
 #
 # Pre-configured test users in Keycloak:
@@ -21,14 +21,14 @@
 # ============================================
 
 services:
-  # Override switchboard to use OIDC
-  switchboard:
+  # Override armature to use OIDC
+  armature:
     environment:
       AUTH_MODE: oidc
-      OIDC_ISSUER_URL: http://keycloak:8080/realms/switchboard
-      OIDC_EXTERNAL_ISSUER_URL: http://localhost:8180/realms/switchboard
-      OIDC_CLIENT_ID: switchboard
-      OIDC_CLIENT_SECRET: switchboard-secret
+      OIDC_ISSUER_URL: http://keycloak:8080/realms/armature
+      OIDC_EXTERNAL_ISSUER_URL: http://localhost:8180/realms/armature
+      OIDC_CLIENT_ID: armature
+      OIDC_CLIENT_SECRET: armature-secret
       OIDC_REDIRECT_URL: http://localhost:3000/api/v1/auth/oidc/callback
       OIDC_AUTO_ACTIVATE: "true"
       OIDC_ADMIN_ROLE: sb-admin
@@ -38,7 +38,7 @@ services:
 
   keycloak:
     image: quay.io/keycloak/keycloak:26.0
-    container_name: switchboard-keycloak
+    container_name: armature-keycloak
     command:
       - start-dev
       - --import-realm
@@ -48,7 +48,7 @@ services:
       KC_HTTP_PORT: "8080"
       KC_HEALTH_ENABLED: "true"
     volumes:
-      - ./ci/keycloak-realm.json:/opt/keycloak/data/import/switchboard-realm.json:ro
+      - ./ci/keycloak-realm.json:/opt/keycloak/data/import/armature-realm.json:ro
     ports:
       - "8180:8080"
     healthcheck: