fix page zugriffsverwaltung - buttons removed

src/pages/admin/AccessManagementHub.tsx

@@ -320,61 +320,66 @@ export const AccessManagementHub: React.FC = () => {
       </div>
 
       <div className={hubStyles.filters}>
-        <div className={styles.filterGroup}>
-          <label className={styles.filterLabel}>
-            <FaBuilding style={{ marginRight: 8 }} />
-            Mandant:
-          </label>
-          <select
-            className={styles.filterSelect}
-            value={selectedMandateId}
-            onChange={(e) => setSelectedMandateId(e.target.value)}
-          >
-            <option value="">-- Mandant wählen --</option>
-            {mandates.map((m) => (
-              <option key={m.id} value={m.id}>
-                {getMandateName(m)}
-              </option>
-            ))}
-          </select>
-        </div>
-        <div className={styles.filterGroup}>
-          <label className={styles.filterLabel}>
-            <FaCube style={{ marginRight: 8 }} />
-            Feature:
-          </label>
-          <select
-            className={styles.filterSelect}
-            value={selectedFeatureCode}
-            onChange={(e) => setSelectedFeatureCode(e.target.value)}
-          >
-            <option value="">Alle</option>
-            {features.map((f) => (
-              <option key={f.code} value={f.code}>
-                {getFeatureLabel(f)}
-              </option>
-            ))}
-          </select>
-        </div>
-        {selectedMandateId && (
-          <div className={styles.headerActions}>
-            <button
-              className={styles.secondaryButton}
-              onClick={() =>
-                fetchInstances(selectedMandateId, selectedFeatureCode || undefined)
-              }
-              disabled={loading}
-            >
-              <FaSync className={loading ? 'spinning' : ''} /> Aktualisieren
-            </button>
-            <button
-              className={styles.primaryButton}
-              onClick={() => setShowWizard(true)}
-              disabled={features.length === 0}
-            >
-              + Neue Instanz erstellen
-            </button>
-          </div>
+        {/* Filter dropdowns only shown in list view - hierarchy shows everything */}
+        {viewMode === 'list' && (
+          <>
+            <div className={styles.filterGroup}>
+              <label className={styles.filterLabel}>
+                <FaBuilding style={{ marginRight: 8 }} />
+                Mandant:
+              </label>
+              <select
+                className={styles.filterSelect}
+                value={selectedMandateId}
+                onChange={(e) => setSelectedMandateId(e.target.value)}
+              >
+                <option value="">-- Mandant wählen --</option>
+                {mandates.map((m) => (
+                  <option key={m.id} value={m.id}>
+                    {getMandateName(m)}
+                  </option>
+                ))}
+              </select>
+            </div>
+            <div className={styles.filterGroup}>
+              <label className={styles.filterLabel}>
+                <FaCube style={{ marginRight: 8 }} />
+                Feature:
+              </label>
+              <select
+                className={styles.filterSelect}
+                value={selectedFeatureCode}
+                onChange={(e) => setSelectedFeatureCode(e.target.value)}
+              >
+                <option value="">Alle</option>
+                {features.map((f) => (
+                  <option key={f.code} value={f.code}>
+                    {getFeatureLabel(f)}
+                  </option>
+                ))}
+              </select>
+            </div>
+            {selectedMandateId && (
+              <div className={styles.headerActions}>
+                <button
+                  className={styles.secondaryButton}
+                  onClick={() =>
+                    fetchInstances(selectedMandateId, selectedFeatureCode || undefined)
+                  }
+                  disabled={loading}
+                >
+                  <FaSync className={loading ? 'spinning' : ''} /> Aktualisieren
+                </button>
+                <button
+                  className={styles.primaryButton}
+                  onClick={() => setShowWizard(true)}
+                  disabled={features.length === 0}
+                >
+                  + Neue Instanz erstellen
+                </button>
+              </div>
+            )}
+          </>
         )}
       </div>