docs(changelog): add CHANGELOG.md and link from docs index

docs/CHANGELOG.md

@@ -0,0 +1,12 @@
+Changelog
+
+v0.0.1-Bootstrap — 2025-09-11
+- Clean root: only README/LICENSE, allowed dotfiles, and directories.
+- Docs consolidated under docs/ with clickable links.
+- COMMON/CTO/COO/CCO reserved for prompts, questions, and proposals.
+- Modular prompt packs: COMMON base + area manifests; packs in CTO/dist/prompts and COO/dist/prompts.
+- CI image at docker/ci.Dockerfile; compose at docker/ci.compose.yml.
+- Make targets in scripts/Makefile; hooks installed via scripts/setup-hooks.
+- Commitlint config in .config/commitlint.config.cjs; hook updated.
+- Tags/releases reset to this baseline; previous tags removed.
+

docs/README.md

@@ -9,6 +9,7 @@ Key Documents
 - Documentation style: [docs-style.md](docs-style.md)
 - Operational notes: [RESUME.md](RESUME.md), [TODO.md](TODO.md)
 - History: [history/BOOTSTRAP.md](history/BOOTSTRAP.md)
+ - Changelog: [CHANGELOG.md](CHANGELOG.md)
  - Weekly recap: [RECAP-2025-09-11.md](RECAP-2025-09-11.md)
 
 Usage