Rework Chase mode into a karaoke-style letter stream#8
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Replace the falling-groups arcade with a continuous karaoke timeline: - Letters stream right-to-left as notes on 11 tone lanes (300-800 Hz in 50 Hz steps); each letter's Morse audio plays at its lane tone when the note crosses the hit line. - Type what you hear inside each note's answer window. Typing a later pending letter drops the earlier ones as missed, and unanswered notes expire — training the "let go and move on" skill of long conversations. - The pace wanders randomly inside the shared effective-WPM range and adapts: clean copy speeds the stream up, mistakes ease it off. Periodic calm "breather" phases stretch the gaps so runs stay fun, not tiring. - No lives: play as long as you like, then Finish to see conversation copy stats — accuracy heat-line, per-letter log, best combo, peak pace. - New pure engine in src/lib/chase/karaoke.ts (lanes, pace controller, keystroke resolution, scoring) with full unit tests; session machine, store slice, hook, views, settings form, and copy updated to match. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012QHyoSMqo5wHvkJ1efiZSZ
Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #8 +/- ##
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+ Coverage 72.39% 72.56% +0.17%
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Files 149 150 +1
Lines 10683 10819 +136
Branches 3629 3657 +28
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+ Hits 7734 7851 +117
- Misses 2665 2678 +13
- Partials 284 290 +6 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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Replace the falling-groups arcade with a continuous karaoke timeline.