feat: Ctrl+S saves current tab (piano roll, section, audio) or project + all dirty tabs

app/static/js/app.jsx

@@ -7383,7 +7383,43 @@ const App = () => {
       }
       if (ctrl && !alt && e.key === 's') {
         e.preventDefault();
-        handleSaveProject();
+        const curTab = activeTabRef.current;
+        if (curTab === 'main') {
+          // Main session: save project + save all dirty sub-tabs
+          handleSaveProject();
+          subTabsRef.current.filter(s => s.isDirty).forEach(st => {
+            if (st.type === 'PIANO_ROLL') {
+              handleSaveMidiNotes(st.id, st.trackId, st.target_id, st.notes || []);
+            } else if (st.type === 'SECTION') {
+              handleSaveSectionTab(st.id);
+            } else if (st.buffer) {
+              // Audio clip sub-tab: save buffer to track
+              const subTrack = activeTracksRef.current.find(t => t.id === st.trackId);
+              if (subTrack) {
+                updateActiveTracks(prev => prev.map(t => t.id === st.trackId ? { ...t, buffer: st.buffer } : t));
+              }
+            }
+            showToast('Đã lưu', 'success');
+          });
+        } else {
+          // Sub-tab: save current tab
+          const st = subTabsRef.current.find(s => s.id === curTab);
+          if (st) {
+            if (st.type === 'PIANO_ROLL') {
+              handleSaveMidiNotes(st.id, st.trackId, st.target_id, st.notes || []);
+              showToast('Đã lưu Piano Roll', 'success');
+            } else if (st.type === 'SECTION') {
+              handleSaveSectionTab(st.id);
+              showToast('Đã lưu Section Tab', 'success');
+            } else if (st.buffer) {
+              const subTrack = activeTracksRef.current.find(t => t.id === st.trackId);
+              if (subTrack) {
+                updateActiveTracks(prev => prev.map(t => t.id === st.trackId ? { ...t, buffer: st.buffer } : t));
+              }
+              showToast('Đã lưu Audio Tab', 'success');
+            }
+          }
+        }
         return;
       }
       if (!ctrl && !alt && e.key === 's') {