fix(testmanagement): enforce a hard timeout on TCG generation polling

[SavioBS629]

Problem

The two TCG test-generation polling loops in src/tools/testmanagement-utils/TCG-utils/api.ts had no wall-clock bound:

• pollTestCaseDetails ran while (!done) and only exited when a "termination" message arrived.
• pollScenariosTestDetails ran a setInterval that was only cleared on termination, a non-200 status, or a thrown error.

If the backend never emits a terminal message — a stuck job, a dropped message, or details streamed without a terminal event — either loop polls indefinitely (~every 10s) and keeps every awaiting caller alive forever. pollTestCaseDetails is fanned out per test-case batch and Promise.alled, so a single stuck trace hangs the whole result.

Fix

• Add shared bounds TCG_POLL_MAX_WAIT_MS (10 min) and TCG_POLL_INTERVAL_MS to TCG-utils/config.ts.
• Enforce a hard wall-clock deadline in both loops (a deadline check in the while loop; a companion setTimeout that clears the interval and rejects), mirroring the bounded polling pattern already used in poll-lca-status.ts.
• Add regression tests for the timeout and the normal-termination paths.

Testing

• npm run lint, tsc --noEmit, and the new tests/tools/tcg-poll-timeout.test.ts pass.
• Pre-existing unrelated flakes in tfaRcaCollaboration.test.ts are present on main and untouched by this change.

🤖 Generated with Claude Code

[coderabbitai]

Important

Review skipped

Auto reviews are disabled on this repository. 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: Central YAML (base), Organization UI (inherited), Workspace UI (inherited)

Review profile: ASSERTIVE

Plan: Enterprise

Run ID: 9f9b8c8a-9027-4842-bf6c-4015a12bfcba

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

---

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