Fix: Move onChange call before docCache update to detect local changes

Co-authored-by: naielv <109038805+naielv@users.noreply.github.com>

src/db.js

@@ -134,11 +134,12 @@ var DB = (function () {
       if (existing) doc._rev = existing._rev;
       await local.put(doc);
 
-      try { docCache[_id] = typeof doc.data === 'string' ? doc.data : JSON.stringify(doc.data); } catch (e) {}
-
       // FIX: manually trigger map() callbacks for local update
+      // Call onChange BEFORE updating docCache so that onChange can detect the change
       onChange({ doc: doc });
 
+      try { docCache[_id] = typeof doc.data === 'string' ? doc.data : JSON.stringify(doc.data); } catch (e) {}
+
     } catch (e) {
       console.error('DB.put error', e);
     }