feat(sequences): multi-lane playback and per-lane manual beats

- Add sequence_playback with beat and time advance, zone targeting fixes
- Per-lane manual beat routing in beat_driver_route (parallel lanes)
- Sequence API, editor JS, fix sequence model filename, tests

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/models/test_sequence.py

@@ -1,62 +1,80 @@
-from models.squence import Sequence
+from models.sequence import Sequence
 import os
 
+_HERE = os.path.dirname(os.path.abspath(__file__))
+_PROJECT_DB = os.path.normpath(os.path.join(_HERE, "..", "..", "db", "sequence.json"))
+
+
 def test_sequence():
     """Test Sequence model CRUD operations."""
-    # Clean up any existing test file
-    if os.path.exists("Sequence.json"):
-        os.remove("Sequence.json")
-    
+    if os.path.exists(_PROJECT_DB):
+        os.remove(_PROJECT_DB)
+
     sequences = Sequence()
-    
+
     print("Testing create sequence")
-    sequence_id = sequences.create("test_group", ["preset1", "preset2"])
+    sequence_id = sequences.create("1")
     print(f"Created sequence with ID: {sequence_id}")
     assert sequence_id is not None
     assert sequence_id in sequences
-    
+
     print("\nTesting read sequence")
     sequence = sequences.read(sequence_id)
     print(f"Read: {sequence}")
     assert sequence is not None
-    assert sequence["group_name"] == "test_group"
-    assert len(sequence["presets"]) == 2
-    assert "sequence_duration" in sequence
-    assert "sequence_loop" in sequence
-    
+    assert sequence["profile_id"] == "1"
+    assert sequence["steps"] == []
+    assert sequence["lanes"] == [[]]
+    assert sequence.get("lanes_group_ids") == [[]]
+    assert sequence.get("advance_mode") == "time"
+    assert sequence["step_duration_ms"] == 3000
+    assert sequence["loop"] is True
+    assert sequence.get("sequence_transition") == 500
+
     print("\nTesting update sequence")
     update_data = {
-        "group_name": "updated_group",
-        "presets": ["preset3", "preset4", "preset5"],
-        "sequence_duration": 5000,
-        "sequence_transition": 1000,
-        "sequence_loop": True,
-        "sequence_repeat_count": 3
+        "name": "updated_seq",
+        "steps": [
+            {"preset_id": "5", "group_ids": ["1"], "beats": 2},
+            {"preset_id": "6", "group_ids": [], "beats": 4},
+        ],
+        "lanes_group_ids": [["1"]],
+        "step_duration_ms": 5000,
+        "loop": True,
+        "advance_mode": "beats",
     }
     result = sequences.update(sequence_id, update_data)
     assert result is True
     updated = sequences.read(sequence_id)
-    assert updated["group_name"] == "updated_group"
-    assert len(updated["presets"]) == 3
-    assert updated["sequence_duration"] == 5000
-    assert updated["sequence_loop"] is True
-    
+    assert updated["name"] == "updated_seq"
+    assert len(updated["steps"]) == 2
+    assert updated["steps"][0]["preset_id"] == "5"
+    assert updated["steps"][0]["group_ids"] == ["1"]
+    assert updated["steps"][0].get("beats") == 2
+    assert isinstance(updated.get("lanes"), list)
+    assert len(updated["lanes"]) == 1
+    assert len(updated["lanes"][0]) == 2
+    assert updated["lanes"][0][0]["beats"] == 2
+    assert updated.get("advance_mode") == "beats"
+    assert updated["step_duration_ms"] == 5000
+    assert updated["loop"] is True
+
     print("\nTesting list sequences")
     sequence_list = sequences.list()
     print(f"Sequence list: {sequence_list}")
     assert sequence_id in sequence_list
-    
+
     print("\nTesting delete sequence")
     deleted = sequences.delete(sequence_id)
     assert deleted is True
     assert sequence_id not in sequences
-    
+
     print("\nTesting read after delete")
     sequence = sequences.read(sequence_id)
     assert sequence is None
-    
+
     print("\nAll sequence tests passed!")
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     test_sequence()