feat: CI gate: run the existing test suite and typecheck on every PR in

[andrei-hasna]

Objective

CI gate: run the existing test suite and typecheck on every PR in chrome — the repo has tests but no CI workflow at all [loop-infinity-300pr]

REPO: https://github.com/hasna/chrome

WHAT TO CHANGE
This repo has a real test suite (7 test files at HEAD) and a test script, but there is no .github/workflows directory at all, so nothing runs on a pull request. Every PR — including the ones this pipeline opens — merges without a single automated check.

Add a single workflow at .github/workflows/ci.yml that runs on pull_request and on push to the default branch.

DONE LOOKS LIKE

• .github/workflows/ci.yml exists and runs, in one job: checkout, oven-sh/setup-bun, bun install --frozen-lockfile, bun run typecheck, bun test.
• Pin the actions to a major version tag (for example actions/checkout@v4, oven-sh/setup-bun@v2) rather than @master.
• The workflow must actually be green on this PR. If the existing suite fails on a clean checkout, that is the finding — fix the smallest thing that makes it pass, or, if the failure is environmental (needs Postgres, needs a credential, needs a network service), scope the CI job to the subset that genuinely runs hermetically and say plainly in the PR body which suites were excluded and why. Do NOT make it green with continue-on-error, || true, or by skipping tests.
• No production source changed beyond what is needed to make the gate honest.

VERIFY

• The workflow run on this PR is green in GitHub Actions.
• bun install --frozen-lockfile && bun test reproduces the same result locally.

EVIDENCE
Checked 2026-07-29 against GitHub HEAD via the GitHub API: repos/hasna/chrome/actions/workflows returned total_count 0, and the recursive git tree at HEAD contains 7 test files. package.json declares test=True, build=False, typecheck=True. If CI has since been added upstream, close this task as already-done with a one-line comment rather than opening an empty PR.

PROCESS: work in a branch off the default branch, one focused change, conventional commit, open a PR. Do not bundle unrelated cleanups. If the repo has a CHANGELOG, add an entry.

Verification

• policy source: base f49b5c4 (immutable commit — agent-proof)
• ⚠️ GATE-INTEGRITY: agent touched verify-bearing config — REVIEW (.github/workflows/ci.yml)
• containment: env — allowlist env, non-login shell, run-scoped HOME (registry auth seeded for install)
• install: pass
• typecheck: pass
• test: pass
• doctor (ci): ok — 11 checks passed (1 advisory)

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Run run_b59c4abe18dd · backend codewith · task 5d7a0f2a-b702-4c31-bd1d-ebc4b16364f3
🏭 Generated by @hasnaxyz/factory

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