ci: validate music data Gekisou aptitude and gzip size

[nichinichisou0609]

Summary

Adds the Gekisou aptitude gates to the general seed, rank-bonus and luckPoints checks. RECIPE is 2; format remains nnnotes.music-data/1.

• Continuous shape ids, effect metadata, existing shape references and complete chart-mission coverage (mission 4 applies everywhere).
• Both true/false variants for band-conditioned shapes, ordered by shape.
• Finite [mean, standard error] pairs, nonnegative standard errors, zero errors and integer point deltas for deterministic variants.
• Seed batches, cross-seed counts, factors and ranges, weight dimensions and null rules.
• Tail identity with a rounding allowance of 0.0005 per serialized term plus 1e-6. Deterministic tailPerfect is checked using the baseline Perfect range bonuses; stochastic Perfect bonus deltas are not exported separately and cannot be reconstructed exactly from means.
• Simulation check seed, ranks, plain-kind deck and error bound.
• Chart aptitude null exactly when unplayable, without ranges, or without shapes.
• Gzip caps: 2,000,000 bytes overall; 1,200,000 bytes for aptitude (a loose cap over the estimated 0.4 MB).

Validation

• Synthetic self-test with the pinned page: 132 passed, 2 optional real-file tests skipped (4.4 s).
• Ruff E/F/W/B and git diff --check pass.
• Real deck chart-stats samples wrapped read-only as music-data: apt1.json (35 shapes, 20 deterministic variants) and apt-luck.json (35 shapes, 15 stochastic variants) pass deck, aptitude and gzip gates. A full nnnotes aptitude export remains to be checked when available.
• Existing page smoke stays unchanged; aptitude UI smoke will follow the player implementation.

Rollout

Do not merge yet. Sync the upstream exporter/model first: older output lacks luckPoints and aptitude and is intentionally blocked. MUSIC_DATA_PUBLISH remains unset; no data uploads or workflow dispatches performed.

Generated with Claude Code

[nichinichisou0609]

Aptitude page smoke added in 445b963 (pure API from player 1522c24; production PLAYER_REF unchanged). Full existing deck output passes: 340 charts, 35 shapes, 8,476 variants (3,672 deterministic). 462 variants missed their SE target and are warnings only. Gzip level 6: wrapped file 1,370,474 bytes, aptitude 985,973 bytes, below the 2 MB / 1.2 MB caps. Joined read-only to existing song facts, the page smoke passes 2,380 baseline figures and 42,380 aptitude figures. Only deterministic check seeds are reconstructed; stochastic means are not used for individual checks. Full nnnotes export validation remains pending. Do not merge or publish.