[Copilot]

The Linux workflow failed in test:unit because one integration-manager test executed a real claude-code install/detect path that depends on dist/* artifacts, while the unit pipeline only builds dist-test/*. This change aligns that test with existing dist-gated real-adapter tests to prevent false negatives in CI.

• Root cause isolation

  • The failing case was PLACEHOLDER_ISSUE is the exact string both claude-code and codex adapters emit, which asserted successful install without checking build artifact availability.

• Targeted test hardening

  • Updated the test to use the existing distReady() gate and skip when production build artifacts are absent.
  • Kept scope surgical: test-only change, no production/runtime logic changes.

• Behavioral impact

  • Unit runs no longer fail due to missing dist bundles in environments that intentionally run only build:test.
  • Real-adapter verification remains intact when npm run build artifacts are present.

test("PLACEHOLDER_ISSUE is the exact string both claude-code and codex adapters emit", async (t) => {
  if (!distReady()) {
    t.skip("dist missing — run npm run build")
    return
  }
  // existing real-adapter assertions...
})