feat: add project installer

[Terry-Mao]

Closes #146

Summary

• Add a Bash installer for syncing AICodingFlow skills and GitHub automation into target repositories.
• Preserve existing repo-local companion skills while allowing regular skills and workflow support files to update.
• Document clone-based and curl-based installation, dry-run usage, dependencies, and optional bootstrap-issue-config setup.

Validation

• bash -n install.sh
• PYTHONDONTWRITEBYTECODE=1 python3 -m unittest discover -s .github/tests -p 'test_install_script.py'
• PYTHONDONTWRITEBYTECODE=1 python3 -m unittest discover -s .github/tests
• git diff --check

[github-actions]

Found: 0 critical, 1 important, 0 suggestions. The installer can use the caller's working directory as its source during curl-based installs, so the documented one-line update path can silently copy stale or unrelated files instead of the current AICodingFlow release.

[github-actions]

Found: 0 critical, 1 important, 0 suggestions. The installer copies the generated workflow test suite into target repositories, but the newly added installer tests require a root install.sh that is not installed, so target repos that run the copied tests fail immediately.

[github-actions]

Found: 0 critical, 1 important, 0 suggestions. The installer currently leaks this repository's repo-local companion skills into fresh target repositories.

[github-actions]

Found: 0 critical, 1 important, 0 suggestions.

[github-actions]

Found: 0 critical, 1 important, 0 suggestions. The installer dry-run path can fail on a clean target before reporting the planned installation.

[github-actions]

Found: 0 critical, 1 important, 0 suggestions. The local review preparation guard was removed while the local wrapper skills still instruct a fixed review skill, so invoking the wrong local wrapper can now silently run the wrong review workflow.

[github-actions]

Applied requested changes on feat/install-script-146.

Summary:

Summary

• Update local review skill instructions to read and follow the selected skill=<path> emitted by prepare_local_review_inputs.py.
• Remove the stale --expected-skill example from repository agent guidance.
• Add a regression test for the selected-skill local review contract.

Validation

• PYTHONDONTWRITEBYTECODE=1 python3 -m unittest discover -s .github/tests -p 'test_implementation_skill_guidance.py'
• PYTHONDONTWRITEBYTECODE=1 python3 -m unittest discover -s .github/tests -p 'test_prepare_local_review_inputs.py'

#148

[github-actions]

Found: 0 critical, 0 important, 1 suggestion.

[github-actions]

Applied requested changes on feat/install-script-146.

Summary:

Summary

• Update README review workflow docs to describe selection of core review-pr and review-spec skills.
• Clarify that repo-local review companions are loaded by those core skills rather than selected directly.

Validation

• git diff --check

#148

[Terry-Mao]

@kratos-ci-bot /review

[github-actions]

No blocking findings found.