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>

chart/templates/prometheusrule.yaml

@@ -2,57 +2,57 @@
 apiVersion: monitoring.coreos.com/v1
 kind: PrometheusRule
 metadata:
-  name: {{ include "switchboard.fullname" . }}-alerts
+  name: {{ include "armature.fullname" . }}-alerts
   labels:
-    {{- include "switchboard.labels" . | nindent 4 }}
+    {{- include "armature.labels" . | nindent 4 }}
     {{- with .Values.monitoring.prometheusRule.labels }}
     {{- toYaml . | nindent 4 }}
     {{- end }}
 spec:
   groups:
-    - name: switchboard.rules
+    - name: armature.rules
       rules:
-        - alert: SwitchboardPodRestart
+        - alert: ArmaturePodRestart
           expr: increase(kube_pod_container_status_restarts_total{container="backend"}[1h]) > 0
           for: 0m
           labels:
             severity: warning
           annotations:
-            summary: "Switchboard backend pod restarted (possible OOM)"
-        - alert: SwitchboardProviderDown
-          expr: switchboard_provider_status > 2
+            summary: "Armature backend pod restarted (possible OOM)"
+        - alert: ArmatureProviderDown
+          expr: armature_provider_status > 2
           for: 5m
           labels:
             severity: critical
           annotations:
             summary: "Provider {{`{{ $labels.provider_config_id }}`}} is down"
-        - alert: SwitchboardDBPoolExhaustion
-          expr: switchboard_db_in_use_connections / switchboard_db_open_connections > 0.8
+        - alert: ArmatureDBPoolExhaustion
+          expr: armature_db_in_use_connections / armature_db_open_connections > 0.8
           for: 5m
           labels:
             severity: warning
           annotations:
             summary: "DB connection pool >80% utilized"
-        - alert: SwitchboardHighErrorRate
+        - alert: ArmatureHighErrorRate
           expr: |
-            sum(rate(switchboard_http_requests_total{status=~"5.."}[5m]))
-            / sum(rate(switchboard_http_requests_total[5m])) > 0.05
+            sum(rate(armature_http_requests_total{status=~"5.."}[5m]))
+            / sum(rate(armature_http_requests_total[5m])) > 0.05
           for: 5m
           labels:
             severity: warning
           annotations:
             summary: "HTTP 5xx error rate exceeds 5%"
-        - alert: SwitchboardTaskFailureRate
+        - alert: ArmatureTaskFailureRate
           expr: |
-            rate(switchboard_task_executions_total{status="error"}[15m])
-            / rate(switchboard_task_executions_total[15m]) > 0.25
+            rate(armature_task_executions_total{status="error"}[15m])
+            / rate(armature_task_executions_total[15m]) > 0.25
           for: 10m
           labels:
             severity: warning
           annotations:
             summary: "Task failure rate exceeds 25%"
-        - alert: SwitchboardNoCompletions
-          expr: sum(rate(switchboard_completions_total[10m])) == 0
+        - alert: ArmatureNoCompletions
+          expr: sum(rate(armature_completions_total[10m])) == 0
           for: 15m
           labels:
             severity: critical