perf: use portable NumPy integral path

exp: test NumPy integral on HF runtime

perf: fuse PBC3 search integral generation

feat: add residual projection experiments

perf: reuse selected reconstructed deltas

Revert "Enable rolling repetition penalty by default"

Enable rolling repetition penalty by default

pbc3: use int16 canvases

pbc3: streamline decoder patch application

pbc3: restore PIL resampling and fix benchmarks

pbc3: promote simplified codec

homemade numba rng + resampling

palette merge into ops

Final refactor hopefully, 7 files + 1 model