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>

packages/icd-test-runner/js/tier-sdk.js

@@ -3,7 +3,7 @@
  * Validates Preact SDK (sw/sdk/index.js) contract: boot, identity,
  * REST client, events, theme, pipe registration, execution ordering,
  * scoping, halt semantics, error isolation, introspection.
- * v0.37.14: Updated from Switchboard.init() to boot() API.
+ * v0.37.14: Updated from Armature.init() to boot() API.
  */
 (function () {
   'use strict';