refactor: complete project, repository, containers, and codebase rename to AccessControl

[spelech]

Summary

Executes a complete, atomic rename of the project, repository, container services, namespaces, frontend UI, MCP tools, and documentation from CodeMaster to AccessControl.

Changes Included

• Repository: Renamed on GitHub to spelech/AccessControl and remote origin updated.
• Solution & Projects: Replaced codemaster.slnx with AccessControl.slnx. Renamed all 8 C# projects to AccessControl.*.
• Namespaces & Usings: Global refactor to namespace AccessControl.* and using AccessControl.*.
• MCP Tool Suite: Updated tool registry to accesscontrol__* with backward-compatible alias fallback for codemaster__*.
• Data Persistence: Auto-migrates legacy codemaster.db to accesscontrol.db. Default ClientId updated to accesscontrol.
• Frontend UI: Renamed to AccessControl.UI (accesscontrol-ui), updated branding, headings, and built production bundle into AccessControl.Web/wwwroot/.
• Docker & Compose: Updated root and simulator Dockerfiles, docker-compose.yaml, docker-compose.test.yaml, and Home Assistant add-on manifests.
• CI/CD & Scripts: Updated .github/workflows/ci.yml, codeql.yml, docker-publish.yml, verify_release.py, and commit.sh.

Verification

• 97/97 .NET backend unit tests passing.
• 4/4 synthetic harness integration tests passing.
• 53/53 Vitest frontend unit & component tests passing.
• ESLint: 0 warnings.
• verify_release.py --ci SemVer & markdown link verification clean.