Feat/gitlab adapter clone

[jaysomani]

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[chatgpt-codex-connector]

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[greptile-apps]

Greptile Summary

This PR adds generateCloneCommand, getLatestCommit, getCommit, createTag, and createFile to the GitLab adapter, along with integration tests for each. The two previously flagged issues — shell injection via unescaped $version in the tag clone path and the misuse of limit instead of per_page in the commits API — are both resolved in this revision.

Confidence Score: 5/5

Safe to merge; all remaining findings are P2 suggestions with no blocking defects.

Both previously flagged issues are addressed. The implementation closely mirrors the existing GitHub adapter. The only open finding is a test coverage gap (tag/commit clone paths are not executed end-to-end), which is a P2 improvement rather than a correctness problem.

tests/VCS/Adapter/GitLabTest.php — consider adding exec-based assertions for tag and commit-hash clone tests.

Vulnerabilities

No new security concerns identified. The previously reported shell injection in CLONE_TYPE_TAG (raw $version interpolated into the git refspec) has been fixed — the code now uses $tagName = escapeshellarg($version). The access token is embedded in the clone URL via urlencode, which is consistent with the GitHub adapter and expected for this use case.

Important Files Changed

Filename	Overview
src/VCS/Adapter/Git/GitLab.php	Adds generateCloneCommand, getLatestCommit, getCommit, createTag, and createFile; fixes shell injection in CLONE_TYPE_TAG by using escapeshellarg result, and switches commits API to per_page=1. Logic mirrors the GitHub adapter closely.
tests/VCS/Adapter/GitLabTest.php	Adds integration tests for all new methods; branch clone is fully executed end-to-end, but tag and commit-hash clone tests only validate the command string without executing it.

_{Reviews (2): Last reviewed commit: "fix: shell injection in CLONE_TYPE_TAG a..." | Re-trigger Greptile}