feat(system): health-Endpoint liefert jetzt hostname + OS + kernel

- /system/health gibt zusätzlich hostname, os (PRETTY_NAME aus
  /etc/os-release) und kernel (/proc/version, ohne Build-Details) zurück
- Settings-Seite: SystemHealth-Interface erweitert, System-Info-Card
  zeigt Hostname, Betriebssystem und Kernel-Version an (conditional,
  nur wenn vorhanden)
- Nützlich beim Verwalten mehrerer Boxen — ohne SSH sofort sehen
  welches System gerade geöffnet ist

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

VERSION

@@ -1 +1 @@
-1.1.97
+1.1.98

cmd/edgeguard-api/main.go

@@ -60,7 +60,7 @@ import (
 	usersvc "git.netcell-it.de/projekte/edgeguard-native/internal/services/users"
 )
 
-var version = "1.1.97"
+var version = "1.1.98"
 
 func main() {
 	addr := os.Getenv("EDGEGUARD_API_ADDR")

cmd/edgeguard-ctl/main.go

@@ -11,7 +11,7 @@ import (
 	"git.netcell-it.de/projekte/edgeguard-native/internal/services/setup"
 )
 
-var version = "1.1.97"
+var version = "1.1.98"
 
 const usage = `edgeguard-ctl — EdgeGuard CLI
 

cmd/edgeguard-scheduler/main.go

@@ -35,7 +35,7 @@ import (
 	"git.netcell-it.de/projekte/edgeguard-native/internal/services/tlscerts"
 )
 
-var version = "1.1.97"
+var version = "1.1.98"
 
 const (
 	// renewTickInterval — how often we re-evaluate expiring certs.

internal/handlers/system.go

@@ -752,10 +752,31 @@ func (h *SystemHandler) ConfigPreview(c *gin.Context) {
 }
 
 func (h *SystemHandler) Health(c *gin.Context) {
-	response.OK(c, gin.H{
+	resp := gin.H{
 		"status":  "ok",
 		"version": h.Version,
-	})
+	}
+	if hn, err := os.Hostname(); err == nil {
+		resp["hostname"] = hn
+	}
+	if data, err := os.ReadFile("/proc/version"); err == nil {
+		// /proc/version: "Linux version 6.x.y (...)" — Kurzform: alles
+		// bis zum ersten '(' kürzen.
+		line := strings.TrimSpace(string(data))
+		if idx := strings.Index(line, " ("); idx > 0 {
+			line = strings.TrimSpace(line[:idx])
+		}
+		resp["kernel"] = line
+	}
+	if data, err := os.ReadFile("/etc/os-release"); err == nil {
+		for _, line := range strings.Split(string(data), "\n") {
+			if k, v, ok := strings.Cut(line, "="); ok && k == "PRETTY_NAME" {
+				resp["os"] = strings.Trim(v, `"`)
+				break
+			}
+		}
+	}
+	response.OK(c, resp)
 }
 
 // PackageVersions reports installed and available versions for the

management-ui/src/i18n/locales/de/common.json

@@ -517,6 +517,9 @@
     "systemInfo": "System",
     "version": "Version",
     "status": "Status",
+    "hostname": "Hostname",
+    "os": "Betriebssystem",
+    "kernel": "Kernel",
     "dbSize": "PostgreSQL-DB-Größe",
     "dbSizeTop": "Top-Tabellen",
     "upgradeStatusCardTitle": "Letzter Update-Versuch",

management-ui/src/i18n/locales/en/common.json

@@ -517,6 +517,9 @@
     "systemInfo": "System",
     "version": "Version",
     "status": "Status",
+    "hostname": "Hostname",
+    "os": "OS",
+    "kernel": "Kernel",
     "dbSize": "PostgreSQL DB size",
     "dbSizeTop": "Top tables",
     "upgradeStatusCardTitle": "Last upgrade attempt",

management-ui/src/pages/Settings/index.tsx

@@ -23,6 +23,9 @@ interface ContactEmailValues {
 interface SystemHealth {
   status: string
   version: string
+  hostname?: string
+  kernel?: string
+  os?: string
 }
 
 interface ChangePasswordValues {
@@ -329,6 +332,9 @@ export default function SettingsPage() {
         <Descriptions column={1}>
           <Descriptions.Item label={t('settings.version')}>{health?.version ?? '—'}</Descriptions.Item>
           <Descriptions.Item label={t('settings.status')}>{health?.status ?? '—'}</Descriptions.Item>
+          {health?.hostname && <Descriptions.Item label={t('settings.hostname')}><code>{health.hostname}</code></Descriptions.Item>}
+          {health?.os && <Descriptions.Item label={t('settings.os')}>{health.os}</Descriptions.Item>}
+          {health?.kernel && <Descriptions.Item label={t('settings.kernel')}><code style={{ fontSize: 11 }}>{health.kernel}</code></Descriptions.Item>}
           {dbSize && (
             <Descriptions.Item label={t('settings.dbSize')}>
               <Space direction="vertical" size={2}>