refactor: extract openToolsTab helper to pages/sessions

[empiricalrun]

Summary

Identified that page.getByRole('tab', { name: 'Tools', exact: true }).click() was repeated 13 times across 3 spec files:

• tests/tool-execution/session.spec.ts (11 occurrences)
• tests/my-sessions.spec.ts (1 occurrence)
• tests/issues.spec.ts (1 occurrence)

Change

Added a single openToolsTab(page) helper function to tests/pages/sessions.ts and replaced all 13 inline usages across the 3 files.

export async function openToolsTab(page: Page): Promise<void> {
  await page.getByRole('tab', { name: 'Tools', exact: true }).click();
}

This follows the existing pattern in pages/sessions.ts where session UI interactions (e.g. navigateToSessions, createSession, sendMessage, closeSession) are centralised as reusable helpers, making tests more readable and easier to maintain.

PR created from session #119811

^{Updated at 2026-04-16 04:58:20.398 UTC}