Hyphae BitNet Runtime 0.3.2

First release under the Hyphae BitNet name. Source version: 0.3.2.

Highlights:

• Restores the published v0.3.0 C ABI and adds sized _ex option APIs for RAM budgets, compute layouts, model families, and n_seq.
• Adds execution-scoped exact Q8 activation reuse for repeated Q1 projections.
• Adds static Q1 decode scheduling and an experimental packed SVE2 kernel; NEON DOTPROD remains the measured Graviton4 default.
• Adds native ARM64 CI for Q1 DOTPROD/I8MM/SVE2 correctness.
• Preserves celiums-bitnet, the celiums_bitnet_* ABI, and historical schemas as compatibility namespaces.

Graviton4 validation and A/B results are recorded in docs/benchmark-results-2026-08-24-r8g-sve2-cache.json.

Binaries compiled against the unreleased, broken v0.3.1 expanded option-return layouts must be rebuilt. The published v0.3.0 ABI remains compatible.