ge-hch.5.15.18: add player preference tracker #172
Merged
+128
−1
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Summary\n- add player-preference tracker with localStorage persistence and default 0.5 cold-start\n- expose getPreference(branchType) and recordOutcome(branchType, accepted) APIs\n- add unit tests covering recording, persistence, and bad-input handling\n\n## Testing\n- npx jest tests/unit/player-preference.test.js --runInBand\n\nCloses bd#ge-hch.5.15.18