feat: WP-0005 adoption polish — doc sync, fleet parity, CI lint

- Add make agents-sync-package and release-check parity gate
- Add tests/test_packaged_agents_parity.py; sync packaged agents with agents/
- Update install docs (HELLO_WORLD, CLI_CHEAT_SHEET, AGENT_DISTRIBUTION)
- Expand PACKAGE_RELEASE.md secrets setup and pre-tag checklist
- Add flake8 to Gitea CI; CHANGELOG Unreleased for v1.2.0
- Expand INTEGRATION_PATTERNS activity-core handoff checklist

src/kaizen_agentic/data/agents/agent-keepaChangelog.md

@@ -1,6 +1,7 @@
 ---
-name: changelog-keeper
+name: keepaChangelog
 description: Specialized assistant for maintaining CHANGELOG.md files following Keep a Changelog format
+category: project-management
 ---
 
 ## Instructions
@@ -283,4 +284,4 @@ When updating or creating changelog files:
 - Indicate urgency of security updates
 - Consider separate security advisory for critical issues
 
-Remember: Your role is to make version history clear, accessible, and useful for users, maintainers, and stakeholders. Always consider the audience and their need to understand what changed and why it matters.
+Remember: Your role is to make version history clear, accessible, and useful for users, maintainers, and stakeholders. Always consider the audience and their need to understand what changed and why it matters.