feat: delete pair button in EditPairForm with confirmation

Two-step: "Pair löschen" → confirm "Wirklich löschen" before DELETE /pairs/:id.
On success closes the form and reloads the pairs list.

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

src/pages/ContentCreation.jsx

@@ -1,6 +1,6 @@
 import { useEffect, useState, useRef, useCallback, useMemo } from 'react';
 import Layout from '../components/Layout';
-import { apiFetch, apiPost, apiPatch, apiLink, apiUnlink, getUserLang } from '../lib/api';
+import { apiFetch, apiPost, apiPatch, apiLink, apiUnlink, apiDelete, getUserLang } from '../lib/api';
 import { STATUS_COLORS } from '../lib/tables';
 
 // ─── Word / placeholder helpers ───────────────────────────────────────────────
@@ -425,7 +425,7 @@ function PairForm({ objectId, allObjects, onPairSaved }) {
 
 // ─── EditPairForm ─────────────────────────────────────────────────────────────
 
-function EditPairForm({ pair, allObjects, onSaved, onCancel }) {
+function EditPairForm({ pair, allObjects, onSaved, onCancel, onDeleted }) {
   const lang = getUserLang();
   const [loading, setLoading] = useState(true);
   const [saving, setSaving] = useState(false);
@@ -441,9 +441,20 @@ function EditPairForm({ pair, allObjects, onSaved, onCancel }) {
   const [selection, setSelection] = useState('');
   const [wordInput, setWordInput] = useState('');
   const [creatingWord, setCreatingWord] = useState(false);
+  const [confirmDelete, setConfirmDelete] = useState(false);
+  const [deleting, setDeleting] = useState(false);
 
   useEffect(() => { setWordInput(selection); }, [selection]);
 
+  async function handleDelete() {
+    setDeleting(true);
+    try {
+      await apiDelete('/pairs', pair.id);
+      onDeleted(pair.id);
+    } catch (e) { alert('Fehler beim Löschen: ' + e.message); }
+    finally { setDeleting(false); }
+  }
+
   useEffect(() => {
     async function load() {
       try {
@@ -675,12 +686,31 @@ function EditPairForm({ pair, allObjects, onSaved, onCancel }) {
           </div>
         )}
       </div>
-      <div className="flex gap-2 pt-2 border-t border-amber-100">
+      <div className="pt-2 border-t border-amber-100 space-y-1.5">
+        <div className="flex gap-2">
           <button onClick={onCancel} className="flex-1 py-1.5 text-xs font-medium rounded-lg border border-slate-300 text-slate-600 hover:bg-slate-50 transition-colors">Abbrechen</button>
           <button onClick={handleSave} disabled={saving} className="flex-1 py-1.5 text-xs font-medium rounded-lg bg-amber-500 hover:bg-amber-600 disabled:opacity-40 text-white transition-colors">
-          {saving ? 'Speichern…' : '✓ Änderungen speichern'}
+            {saving ? 'Speichern…' : '✓ Speichern'}
           </button>
         </div>
+        {!confirmDelete ? (
+          <button onClick={() => setConfirmDelete(true)}
+            className="w-full py-1.5 text-xs font-medium rounded-lg border border-red-200 text-red-400 hover:bg-red-50 hover:text-red-600 hover:border-red-300 transition-colors">
+            🗑 Pair löschen
+          </button>
+        ) : (
+          <div className="flex gap-2">
+            <button onClick={() => setConfirmDelete(false)}
+              className="flex-1 py-1.5 text-xs rounded-lg border border-slate-300 text-slate-500 hover:bg-slate-50 transition-colors">
+              Abbrechen
+            </button>
+            <button onClick={handleDelete} disabled={deleting}
+              className="flex-1 py-1.5 text-xs font-semibold rounded-lg bg-red-500 hover:bg-red-600 disabled:opacity-50 text-white transition-colors">
+              {deleting ? 'Löschen…' : '✓ Wirklich löschen'}
+            </button>
+          </div>
+        )}
+      </div>
     </div>
   );
 }
@@ -848,7 +878,8 @@ function PairsPanel({ selectedObject, allObjects, objectPairs, loadingPairs, onP
               {editingId === pair.id ? (
                 <EditPairForm pair={pair} allObjects={allObjects}
                   onSaved={() => { setEditingId(null); onPairsReload(); }}
-                  onCancel={() => setEditingId(null)} />
+                  onCancel={() => setEditingId(null)}
+                  onDeleted={id => { setEditingId(null); onPairsReload(); }} />
               ) : (
                 <div className="rounded-lg border border-slate-200 p-3 bg-slate-50 space-y-1.5">
                   <div className="flex items-center gap-2">