chore: add design docs and ready command

- Add convoy-lifecycle.md design doc
- Add formula-resolution.md design doc
- Add mol-mall-design.md design doc
- Add ready.go command implementation
- Move dog-pool-architecture.md to docs/design/
- Update .gitignore for beads sync files

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -42,6 +42,8 @@ state.json
 .beads/mq/
 .beads/last-touched
 .beads/daemon-*.log.gz
+.beads/.sync.lock
+.beads/sync_base.jsonl
 .beads-wisp/
 
 # Clone-specific CLAUDE.md (regenerated locally per clone)