ci: inject OAuth client ids and flags into the frontend build

[parth0025]

Root cause

The Google/GitHub/GitLab buttons never appeared on staging even though they work locally. Reason: the frontend bundle is built on the GitHub Actions runner (the validate job runs npm run build, then the artifact is shipped to the VPS). frontend/.env is gitignored, so on the runner the only VUE_APP_* values are the ones explicitly mapped from secrets in the build step — and the OAuth vars were missing from that map. So the shipped bundle had every VUE_APP_IS_*_LOGIN flag undefined → no buttons. Editing frontend/.env on the server has no effect, because the server never builds the bundle.

Fix

Map the OAuth enable-flags and client ids from GitHub secrets in the build step (same pattern as the Firebase vars), and pin the constant github.com / gitlab.com OAuth base URLs.

⚠️ Required before buttons appear — set these GitHub repository secrets

Settings → Secrets and variables → Actions → New repository secret:

Secret	Value
VUE_APP_IS_GOOGLE_LOGIN	true
VUE_APP_GOOGLE_CLIENT_ID	the Google client id used for staging
VUE_APP_IS_GITHUB_LOGIN	true
VUE_APP_GITHUB_CLIENT_ID	the GitHub client id used for staging
VUE_APP_IS_GITLAB_LOGIN	true
VUE_APP_GITLAB_CLIENT_ID	the GitLab application id used for staging

Note: the OAuth apps must also list the staging origin/redirect (https://staging-app.alianhub.com). GitHub OAuth Apps allow only one callback URL, so staging likely needs its own GitHub app (separate client id) — Google/GitLab can add staging as an extra redirect on the same app.

After the secrets are set, trigger a redeploy (Actions → Run workflow, enabled by #236) to rebuild with them.

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on base/target branches other than the default branch.

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 1bd5ec95-3384-4b42-b10f-9fc982cd824d

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch ci/oauth-frontend-build-env

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}