feat(capitalize): enforce English in all memory registry entries
Registries are re-read at every session start; consistency pays back
each time. Adding a single rule in CLAUDE.md § Memory registries
(authoritative) + a short reminder at the end of each CAPITALIZE
block (ship-feature, bugfix, hotfix, feat, commit-change, close).
Rationale: (1) model re-reads the registries more efficiently in a
single language, (2) lower token cost for English (model's primary
training language), (3) easier cross-project reuse. Interactive gates
may still mirror the user's language — only the written entry is
constrained.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>