chore(workflows): disable all GitHub Actions workflows

- Add `workflow: disable: true` to 23 workflow files to temporarily disable CI/CD automation
- Affects agent-contributions, build-macos-packages, ci, cli-tests, comprehensive-tests, configuration-security, contracts-ci, dotenv-check, file-organization, markdown-link-check, phase8-integration, production-deploy, publish-github-packages, publish-native-packages-simple, publish-native-packages, publish-npm-packages, publish-packages-to-registry

.github/workflows/phase8-integration.yml

@@ -46,3 +46,5 @@ jobs:
         run: |
           cd apps/coordinator-api
           python -m pytest tests/test_phase8_optional_endpoints.py -v --tb=short --disable-warnings
+workflow:
+  disable: true