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>

server/auth/mock_idp_test.go

@@ -109,7 +109,7 @@ func (m *mockIdP) issueToken(sub, email, name string, groups []string, roles []s
 	claims := jwt.MapClaims{
 		"iss":                m.server.URL,
 		"sub":                sub,
-		"aud":                "switchboard",
+		"aud":                "armature",
 		"exp":                time.Now().Add(1 * time.Hour).Unix(),
 		"iat":                time.Now().Unix(),
 		"email":              email,
@@ -140,7 +140,7 @@ func (m *mockIdP) issueExpiredToken(sub string) string {
 	claims := jwt.MapClaims{
 		"iss": m.server.URL,
 		"sub": sub,
-		"aud": "switchboard",
+		"aud": "armature",
 		"exp": time.Now().Add(-1 * time.Hour).Unix(),
 		"iat": time.Now().Add(-2 * time.Hour).Unix(),
 	}
@@ -160,7 +160,7 @@ func (m *mockIdP) issueTokenBadIssuer(sub string) string {
 	claims := jwt.MapClaims{
 		"iss": "https://evil.example.com",
 		"sub": sub,
-		"aud": "switchboard",
+		"aud": "armature",
 		"exp": time.Now().Add(1 * time.Hour).Unix(),
 		"iat": time.Now().Unix(),
 	}