test(gherkin): cover event.test.before/after payload regression

[DavertMik]

Added tests covering #5580

Summary

Adds three layers of test coverage for the bug fixed in #5580 (770749e1), where the Gherkin beforeEach hook emitted event.test.before with a placeholder test (title "...", empty tags) because the asyncWrapper read suite.ctx.currentTest from a Mocha hook Context that only had currentTest directly. The regression silently broke every listener of event.test.before (@testomatio/reporter, screenshot, heal, customReporter, aiTrace, screencast, globalTimeout, globalRetry, retryFailedStep, the workers IPC bridge, …) for BDD scenarios.

• Unit (test/unit/bdd_test.js) — 6 new tests in a Gherkin hook events block. They drive the codeceptjs.before / codeceptjs.after hooks with a synthetic Mocha hook Context ({ currentTest }) and assert the real scenario title and tags reach event.test.before, event.test.after, the Before/After step-definition hooks, that done is forwarded exactly once, and that the event ordering test.before → test.started → test.passed → test.after is preserved.
• Runner (test/runner/bdd_test.js + test/data/sandbox/) — new capture plugin (support/capture_test_before.js) and config (codecept.bdd.events.js) serialize event.test.before/after payloads to a temp JSON file. A spawned runner asserts the real @important / @very tags and scenario title reach listeners end-to-end.
• Acceptance (test/acceptance/gherkin/before_hook.feature + steps.js) — new Background + tagged scenario. The Then step verifies both the BDD Before() hook and a direct event.test.before listener captured the real scenario title/tags.

Also flips the suite?.ctx?.currentTest ?? suite?.currentTest precedence in setup/teardown so the regular Scenario path keeps using ctx.currentTest while the BDD hook Context still falls back to currentTest.

Verified the new tests catch the regression: reverting setup/teardown to the pre-fix enhanceMochaTest(suite?.ctx?.currentTest) makes 2/6 unit tests, the runner test, and the acceptance test fail with the placeholder "..." title. Restoring the fix makes them all pass.

Test plan

• npx mocha test/unit/bdd_test.js --timeout 10000 — 24 passing (6 new + 18 existing)
• npx mocha test/runner/bdd_test.js --timeout 60000 --grep "emits event.test.before" — 1 passing
• ./bin/codecept.js run --config test/acceptance/codecept.Playwright.js --grep "@hookCapture" --verbose — passes against the PHP test app on :8000
• Reverting lib/mocha/asyncWrapper.js to the pre-fix code causes all three new layers to fail with the placeholder "..." title; restoring the fix makes them pass
• Cross-check against ~/projects/testomatio/examples/codeceptjs-cucumber/ — scenarios now report with real titles and @T… tags

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