Fix GitLab repo-fetch parent derivation and its test mock

[blockgroot]

Summary

Fixes #702.

fetchRepos's GitLab branch (web-server/pages/api/internal/[org_id]/git_org_repos.ts)
re-derived parent from repo.fullPath via string splitting, even though the GraphQL
query already fetches namespace.fullPath — the field that directly represents it. The
derivation is mathematically equivalent for well-formed data, so it wasn't a production
bug, but it was redundant, and it was the root cause of a stale test fixture: the mock's
fullPath and namespace.fullPath were mutually inconsistent with each other, and its
id wasn't shaped like a real GitLab GID (gid://gitlab/Project/...). Both caused the
GitLab case of fetchRepos's test to fail ever since it was introduced in #672.

Changes

• git_org_repos.ts: read parent from repo.namespace.fullPath directly instead of
  re-deriving it from repo.fullPath.
• git_org_repos.test.ts: use a realistic, internally-consistent GitLab GraphQL mock
  (GID-shaped id, fullPath/namespace.fullPath that agree with each other), and
  correct the assertion's expected id to a number, matching what the implementation
  actually returns.

Test plan

• cd web-server && npx jest --watchAll=false --passWithNoTests -t "fetchRepos" — both
  GitHub and GitLab cases now pass (previously the GitLab case failed).
• npx tsc --noEmit — clean.
• npx eslint "pages/api/internal/[org_id]/git_org_repos.ts" — no new findings (verified
  identical pre-existing warning/error count on main before this change; this file has
  pre-existing lint debt unrelated to this fix, left untouched per scope).

Summary by CodeRabbit

• Bug Fixes
  • Improved GitLab repository organization mapping for more accurate parent relationships.
  • Updated repository identification to use numeric project IDs consistently.

[CLAassistant]

All committers have signed the CLA.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 7dbe9bab-9859-4817-92bc-7867aa7754a9

📥 Commits

Reviewing files that changed from the base of the PR and between 844eb42 and ca78904.

📒 Files selected for processing (2)

• web-server/pages/api/internal/[org_id]/__tests__/git_org_repos.test.ts
• web-server/pages/api/internal/[org_id]/git_org_repos.ts

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Walkthrough

The GitLab repository fixture now uses a global project ID and a consistent full path. Repository mapping now reads the parent from namespace.fullPath.

Changes

GitLab repository mapping

Layer / File(s)	Summary
GitLab mapping and test validation web-server/pages/api/internal/[org_id]/git_org_repos.ts, web-server/pages/api/internal/[org_id]/__tests__/git_org_repos.test.ts	The mapper uses repo.namespace.fullPath for parent. The test fixture uses a GitLab global project ID and expects numeric ID 101.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Merge Risk: ⚪ Minimal · up to ca789

The PR makes a localized GitLab parent-path correction and aligns its test mock with the implementation; no actionable merge-blocking risk remains after normal checks and review.

Poem

I’m a rabbit with a repo to tend,
A namespace path now marks the bend.
Global IDs hop into place,
Tests find their proper trace.
GitLab mapping reaches the end!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the GitLab parent derivation fix and the related test mock update.
Description check	✅ Passed	The description identifies issue #702, explains the cause, lists the changes, and documents the test plan.
Linked Issues check	✅ Passed	The changes satisfy issue #702 by correcting the GitLab GID mock, aligning paths, fixing the ID expectation, and using namespace.fullPath.
Out of Scope Changes check	✅ Passed	All changes remain within the linked issue scope and address GitLab repository mapping and its test fixture.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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