feat(capitalize): add CAPITALIZE step across completion skills

Registries only get filled if something actively writes to them.
Without integration, the 3-question ritual is aspirational text.
Adds a CAPITALIZE step at the end of every completion skill so work
milestones automatically propose BDR/LRN/BLK entries from context.

- ship-feature STEP 9 — decision/learning/blocker candidates per feature
- bugfix STEP 7 — always propose BLK with root cause; LRN if pattern reusable
- hotfix STEP 5 — default skip; only prompt when non-obvious lesson surfaces
- feat STEP 6 — propose BDR for design choice, LRN for pattern
- commit-change Phase 4 — analyze the commit batch, propose grouped entries

Every variant also appends a one-liner to .claude/memory/journal.md under
today's date heading.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

skills/ship-feature/SKILL.md

@@ -119,6 +119,32 @@ Load `$HOME/.claude/agents/doc-syncer.md`.
 Execute in automatic mode:
 `auto-mode scope: <list of files modified during this session>`
 
+## STEP 9 — CAPITALIZE (memory registries)
+Feature shipped implies at least one design decision worth capturing. Run this before declaring done:
+
+1. Scan conversation context for:
+   - **Design / architecture choices with rationale** → candidate for `decisions.md` (BDR-XXX).
+   - **Reusable patterns, surprising discoveries** → candidate for `learnings.md` (LRN-XXX).
+   - **Dead-ends with identified root cause** → candidate for `blockers.md` (BLK-XXX).
+2. For each candidate, pre-fill a full entry (ID, date, title, body per registry schema) from conversation context.
+3. Present them grouped:
+   ```
+   CAPITALIZE — registres proposés
+   
+   [ decisions.md ]
+     BDR-XXX — <titre> — <1-line why>
+   [ learnings.md ]
+     LRN-XXX — <pattern>
+   [ blockers.md ]
+     (aucun)
+   
+   Valider lesquels ? (all / <IDs> / edit / skip)
+   ```
+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.
+
 ---
 
 ## RULES