refactor(player): state.py tests track discrete Restyle.variant

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

player/state.py

@@ -5,8 +5,8 @@ desired Playback (which neutral base clip, how it is altered, what audio plays,
 at what levels) and returns the Transition from the previous Playback. The
 transition KIND encodes design §4.3: the Dark/Light grade and the Left overlay
 are continuous runtime ops (LIVE_UPDATE), whereas swapping the clip or the
-pre-baked Right v2v variant needs a CROSSFADE, and toggling video on/off
-fades to/from black.
+pre-baked Right restyle variant (a discrete index) needs a CROSSFADE, and
+toggling video on/off fades to/from black.
 
 Knobs no longer *select* a clip (the base library is neutral by construction);
 they *transform* it. Which neutral base to show is an injected policy

tests/test_player_state.py

@@ -56,7 +56,7 @@ def test_overlay_change_is_a_live_update():
     p.update(_controls(content="video", left=0))
     t = p.update(_controls(content="video", left=4))
     assert t.kind == TransitionKind.LIVE_UPDATE
-    assert t.playback.plan.overlay.intensity == 1.0
+    assert t.playback.plan.overlay.level == 4
 
 
 def test_restyle_change_crossfades_the_substrate():
@@ -65,7 +65,7 @@ def test_restyle_change_crossfades_the_substrate():
     p.update(_controls(content="video", right=0))
     t = p.update(_controls(content="video", right=4))
     assert t.kind == TransitionKind.CROSSFADE
-    assert t.playback.plan.restyle.blend == 1.0
+    assert t.playback.plan.restyle.variant == 4
 
 
 def test_volume_only_change_is_a_live_update():