Record Player flow, Streak and identity decisions

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

future_ideas.md

@@ -5,11 +5,12 @@ Things deliberately left out of v1.
 - Real exercise animations or video (v1 uses the start/end Flip Animation)
 - iOS build (and web/desktop)
 - Accounts and cloud sync / backup
-- Scheduling Plans on weekdays, with reminder notifications
+- Scheduling Plans on weekdays
 - Built-in starter Plans
 - Custom user-created Exercises
 - Progress charts and personal records from Set Logs
 - lb units (v1 is kg only)
 - Vibration cues and voice guidance in the Player
 - Translations (v1 is English only)
+- Light/dark setting per Mode (v1 has a fixed look per Mode)
 - Mixed Plans that combine Stretching and Workout (e.g. warm-up, workout, cool-down)