fix(ui): Steuerungszustand sichtbar auch bei Lade-/API-Fehler

Vorher wurde das Panel bei fehlendem Snapshot komplett ausgeblendet.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/components/SteeringSnapshotPanel.jsx

@@ -1,7 +1,26 @@
 import { PHASE_LABELS } from '../constants/operating.js'
 
-export function SteeringSnapshotPanel({ snapshot }) {
+export function SteeringSnapshotPanel({ snapshot, loading, error }) {
-  if (!snapshot) return null
+  if (loading) {
+    return (
+      <section className="card steering-snapshot">
+        <p className="muted">Steuerungszustand wird geladen …</p>
+      </section>
+    )
+  }
+
+  if (error || !snapshot) {
+    return (
+      <section className="card steering-snapshot steering-snapshot--unavailable">
+        <div className="section-header">
+          <h2>Steuerungszustand</h2>
+        </div>
+        <p className="muted">
+          {error || 'Snapshot nicht verfügbar — bitte Seite neu laden (Strg+F5).'}
+        </p>
+      </section>
+    )
+  }
 
   const { operating_phase, phase_signals, counts } = snapshot
   const phaseLabel = PHASE_LABELS[operating_phase] || operating_phase

frontend/src/pages/InitiativeDetailPage.jsx

@@ -91,6 +91,8 @@ export function InitiativeDetailPage() {
   const [reviews, setReviews] = useState([])
   const [recurringItems, setRecurringItems] = useState([])
   const [steeringSnapshot, setSteeringSnapshot] = useState(null)
+  const [steeringSnapshotLoading, setSteeringSnapshotLoading] = useState(false)
+  const [steeringSnapshotError, setSteeringSnapshotError] = useState(null)
   const [loading, setLoading] = useState(true)
   const [error, setError] = useState(null)
   const [showActionForm, setShowActionForm] = useState(false)
@@ -123,9 +125,18 @@ export function InitiativeDetailPage() {
         loads.push(listInitiativeReviews(id).then(setReviews).catch(() => setReviews([])))
         loads.push(listInitiativeRecurring(id).then(setRecurringItems).catch(() => setRecurringItems([])))
         loads.push(
-          getInitiativeSteeringSnapshot(id)
+          (async () => {
-            .then(setSteeringSnapshot)
+            setSteeringSnapshotLoading(true)
-            .catch(() => setSteeringSnapshot(null))
+            setSteeringSnapshotError(null)
+            try {
+              setSteeringSnapshot(await getInitiativeSteeringSnapshot(id))
+            } catch (err) {
+              setSteeringSnapshot(null)
+              setSteeringSnapshotError(err.message || 'Snapshot fehlgeschlagen')
+            } finally {
+              setSteeringSnapshotLoading(false)
+            }
+          })()
         )
       }
       await Promise.all(loads)
@@ -483,7 +494,11 @@ export function InitiativeDetailPage() {
       {error && <p className="error">{error}</p>}
 
       {capabilities.has('kairo.initiative.read') && (
-        <SteeringSnapshotPanel snapshot={steeringSnapshot} />
+        <SteeringSnapshotPanel
+          snapshot={steeringSnapshot}
+          loading={steeringSnapshotLoading}
+          error={steeringSnapshotError}
+        />
       )}
 
       <section className="card">