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>

skills/ship-feature/SKILL.md

@@ -143,7 +143,9 @@ Feature shipped implies at least one design decision worth capturing. Run this b
 4. Append approved entries to the registries. Update the Index table at the top of each file.
 5. Append a one-line entry to `.claude/memory/journal.md` under today's date heading (`## YYYY-MM-DD`).
 
-If nothing substantive to log → print `CAPITALIZE: rien à logger (travail trivial)` and skip.
+**Language rule**: written entries are ALWAYS in English (see CLAUDE.md "Memory registries" § Language). The interactive gate above may mirror the user's language; the appended entries must not.
+
+If nothing substantive to log → print `CAPITALIZE: nothing substantive to log` and skip.
 
 ---