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/main.go

@@ -15,25 +15,25 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
 
-	"switchboard-core/auth"
-	"switchboard-core/cluster"
-	"switchboard-core/config"
-	"switchboard-core/crypto"
-	"switchboard-core/database"
-	"switchboard-core/events"
-	"switchboard-core/sandbox"
-	"switchboard-core/handlers"
-	"switchboard-core/logging"
-	"switchboard-core/metrics"
-	"switchboard-core/middleware"
-	"switchboard-core/notifications"
-	"switchboard-core/pages"
-	"switchboard-core/storage"
-	"switchboard-core/store"
-	"switchboard-core/triggers"
-	"switchboard-core/workflow"
-	postgres "switchboard-core/store/postgres"
-	sqliteStore "switchboard-core/store/sqlite"
+	"armature/auth"
+	"armature/cluster"
+	"armature/config"
+	"armature/crypto"
+	"armature/database"
+	"armature/events"
+	"armature/sandbox"
+	"armature/handlers"
+	"armature/logging"
+	"armature/metrics"
+	"armature/middleware"
+	"armature/notifications"
+	"armature/pages"
+	"armature/storage"
+	"armature/store"
+	"armature/triggers"
+	"armature/workflow"
+	postgres "armature/store/postgres"
+	sqliteStore "armature/store/sqlite"
 )
 
 //
@@ -45,13 +45,13 @@ var swaggerHTML []byte
 
 func main() {
 	// ── Subcommand dispatch ──────────────────
-	// Usage: switchboard vault rekey
+	// Usage: armature vault rekey
 	if len(os.Args) > 2 && os.Args[1] == "vault" {
 		runVaultCommand(os.Args[2])
 		return
 	}
 	if len(os.Args) > 1 && os.Args[1] == "version" {
-		fmt.Println("switchboard", Version)
+		fmt.Println("armature", Version)
 		return
 	}
 
@@ -262,7 +262,7 @@ func main() {
 		if stores.GlobalConfig != nil {
 			if smtpCfg, err := notifications.LoadSMTPConfig(stores.GlobalConfig, keyResolver); err == nil && smtpCfg != nil {
 				transport := notifications.NewEmailTransport(*smtpCfg)
-				instanceName := "Switchboard Core"
+				instanceName := "Armature"
 				if brandCfg, err := stores.GlobalConfig.Get(context.Background(), "branding"); err == nil {
 					if name, ok := brandCfg["instance_name"].(string); ok && name != "" {
 						instanceName = name
@@ -899,7 +899,7 @@ func main() {
 	if bp == "" {
 		bp = "/"
 	}
-	log.Printf("🔀 Switchboard Core v%s starting on port %s", Version, cfg.Port)
+	log.Printf("⚙ Armature v%s starting on port %s", Version, cfg.Port)
 	log.Printf("   Base path: %s", bp)
 	log.Printf("   Schema: %s", database.SchemaVersion())
 	if objStore != nil {
@@ -1014,7 +1014,7 @@ func runVaultCommand(subcmd string) {
 
 	default:
 		fmt.Fprintf(os.Stderr, "Unknown vault command: %s\n", subcmd)
-		fmt.Fprintf(os.Stderr, "Usage: switchboard vault <rekey|status>\n")
+		fmt.Fprintf(os.Stderr, "Usage: armature vault <rekey|status>\n")
 		os.Exit(1)
 	}
 }