BarScript: serve the fitted (non-uniform) bar timeline by default; report grid source, spread and fit quality in the UI

Add BarScript (experimental preview) model + ura difficulty; vendored sc2 subpackage

Restore selectable legacy model generations

Deploy hierarchical SoftChart V1.8

Add v1.6 + v1.7 model selector (7 selectable generators); sync v1.7-capable inference bundle

Replace the preview kit with calibrated modal synthesis

Replace synthesized hits with a licensed sampled arcade kit

Retune the original Taiko kit for arcade punch

Launch bold Server Mode UI and Taiko audition

Emit gogo sections from climax plan blocks

Add TJA chart image preview

Sync v15 KV-cache inference path

Slot-exact generator: dual-model path (slot when grid trusted, time-token fallback)

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initial commit