feat(sync): refonte import Takeout complet (playlists, musique, recherches, identité)

server/index.mjs

@@ -40,6 +40,7 @@ import {
   cryptoRandomId,
   cryptoRandomUUID,
   insertSearchHistory,
+  insertSearchHistoryAt,
   listSearchHistory,
   deleteSearchHistoryById,
   deleteAllSearchHistory,
@@ -2550,6 +2551,28 @@ r.post('/user/history/search', authMiddleware, (req, res) => {
   return res.status(201).json(row);
 });
 
+// Import en lot des recherches Takeout (historique-recherches.html).
+r.post('/user/history/search/batch', authMiddleware, oauthLimiter, (req, res) => {
+  try {
+    const items = Array.isArray(req.body?.items) ? req.body.items : [];
+    if (!items.length) return res.status(400).json({ error: 'items_required' });
+    if (items.length > 1000) return res.status(400).json({ error: 'batch_too_large' });
+    let imported = 0;
+    let skipped = 0;
+    for (const it of items) {
+      const query = String(it?.query || '').trim().slice(0, 300);
+      if (!query) { skipped++; continue; }
+      try {
+        insertSearchHistoryAt({ userId: req.user.id, query, createdAt: it?.createdAt });
+        imported++;
+      } catch { skipped++; }
+    }
+    return res.json({ imported, skipped, total: items.length });
+  } catch {
+    return res.status(500).json({ error: 'search_batch_failed' });
+  }
+});
+
 r.get('/user/history/search', authMiddleware, (req, res) => {
   const limit = Math.min(200, Number(req.query.limit || 50));
   const before = req.query.before ? String(req.query.before) : undefined;