Upgrades SpectralQuant from uniform bit allocation to greedy water-filling
inside the semantic subspace, with per-dimension Lloyd-Max codebooks fit to
the empirical scalar marginal. Adds full three-way evaluation harness
(perplexity, generation, latency, LongBench) on Modal H200 GPUs, comprehensive
documentation, and the consolidated arxiv-ready manuscript.
v1 is preserved on the 'v1' branch.
Co-Authored-By: Anirudh B. Vangara <anirudh@sentra.app>