Extract 457 choreography functions from FightScene.ts into 11 modular files
under fight/choreography/. ChoreoContext interface bundles all closure deps
(k, effects, SFX) so function bodies remain unchanged. Factory pattern
(createFactories) shares prop system and make* helpers across categories.
Categories: basic (72), ranged (94), silly (80), food (45), weapons (45),
ultimates (41), bitcoin (34), heavy (30), creator (16), plus factories
and index. FightScene.ts reduced from 11,917 to 6,515 lines.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
