[Exmeaning]

Summary

• Self-healing missing-chart hydration (/api/v1/meta/deck-charts): When nnnotes's music-data.yml build lags or fails, newly released MasterLiveMusic difficulties (including Challenge Event valuation songs) are now automatically hydrated from moenotes-assets (Live/MusicScore/<chartKey>/<score>.json) instead of blocking the deck builder on solver.dataUpdating (组卡数据更新中。).
• Exact binary32 / runtime_chart::convert parity (src/lib/deck/chart-convert.ts): Converts plain UTF-8 or gzipped ss score JSON with .NET midpoint-to-even rounding, binary32 BPM/bar timelines, Creator::line_shape combo note geometry (judgementAreaOffsetType, lane, width, direction, ease, easeRight, lines), by_key enumeration ordering, fever ranges, and pt.rs playability checks (durationMs > 0, judgedCount > 0, 5 skillEvents).
• Allowlisted server caching & retry penetration (src/lib/masterdata/deck-charts.ts): Resolves scoreId -> MasterLiveMusicScore._musicScoreTextFileName strictly from MasterData, fetches via buildFetch (respecting MOENOTES_ASSET_INTERNAL and forceBypass), falls back kr/en -> tw on 404, caches converted charts in bounded LRU memory, and bypasses negative 404 entries on retry or forceBypass.
• Worker & Haneoka adapter integration (public/deck/deck-worker-core.mjs, src/lib/deck/haneoka/data.ts, src/lib/deck/runtime-source.ts): Batches missing scoreIds during Worker init, merges hydrated charts + provenance.replay.musicLengthsMs, forwards native inputs + enumeration into Haneoka WASM load_source, and provides resolveLiveDeckRuntimeFallback when external music-data has no published replay manifest.

Verification

• bun run lint (i18n, routing, route-registry, architecture, text, emoji, server-config)
• bun run check (next typegen && tsc --noEmit) & bun run check:search-seo
• bun test (1016 passed, 0 failed across 120 test files, including tests/deck-live-chart-hydration.test.ts)