feat(lib): switch __init__ to ONNX-backed generate/generate_scroll

tests/unit/test_mouse.py

@@ -43,3 +43,45 @@ def test_mouse_model_invalid_path_raises_model_load_error() -> None:
     from ai_mouse.errors import ModelLoadError
     with pytest.raises(ModelLoadError):
         MouseModel(model_path="/nonexistent/path/here")
+
+
+def test_mouse_model_timestamps_monotonic() -> None:
+    from ai_mouse.mouse import MouseModel
+    m = MouseModel()
+    pts = m.generate((100, 200), (900, 400))
+    times = [p[2] for p in pts]
+    for i in range(1, len(times)):
+        assert times[i] >= times[i - 1]
+
+
+def test_mouse_model_starts_and_ends_near_endpoints() -> None:
+    from ai_mouse.mouse import MouseModel
+    start = (100, 200)
+    end = (900, 400)
+    m = MouseModel()
+    pts = m.generate(start, end)
+    assert abs(pts[0][0] - start[0]) < 30
+    assert abs(pts[0][1] - start[1]) < 30
+    last_move = pts[-3]  # last 2 are click events
+    assert abs(last_move[0] - end[0]) < 30
+    assert abs(last_move[1] - end[1]) < 30
+
+
+def test_mouse_model_n_points_parameter() -> None:
+    from ai_mouse.mouse import MouseModel
+    m = MouseModel()
+    pts = m.generate((100, 200), (900, 400), n_points=32)
+    # 32 moves + 2 clicks
+    assert len(pts) == 34
+
+
+def test_mouse_model_click_events_have_matching_coords() -> None:
+    from ai_mouse.mouse import MouseModel
+    m = MouseModel()
+    pts = m.generate((100, 200), (900, 400))
+    down, up = pts[-2], pts[-1]
+    assert down[0] == up[0]
+    assert down[1] == up[1]
+    assert up[2] > down[2]
+    # Within click_dist bounds 20..500
+    assert 20 <= up[2] - down[2] <= 500