feat(ui): add "N in progress" indicator and clean up filter layout

[skylenet]

Summary

"N in progress" indicator

A small indicator button now sits next to the Status dropdown in RunFilters (used on both /runs and the suite detail page). It shows a pulsing blue dot + live-run count (e.g. ● 3 in progress), shares the same box height and text size as the adjacent dropdowns, and clicking it toggles the existing "In progress" status filter on/off.

• Rendered only when liveRunsCount > 0 — zero visual noise when nothing is live.
• On the suite detail page the count is scoped to live runs for the current suite.

Fix status filter on suite detail page

The suite detail page's filter logic was missing the status === 'running' case (so choosing "In progress" did nothing), and its status === 'passing' / 'failing' checks used total - passed regardless of whether the row is live. Now matches the RunsPage logic: live rows use the reported tests_failed for pass/fail filtering, and running filters down to in-progress rows.

Cleaner header layout on /runs

• Row 1: Runs (N) title
• Row 2: Metric steps: row
• Row 3: all filter dropdowns (Client, Image, Suite, Strategy, Status, Live indicator) — left-aligned, wrapping on narrow screens

Test plan

• TypeScript + ESLint clean
• Manual: start a live run, confirm the indicator appears on /runs next to the Status dropdown with the correct count
• Manual: click the indicator, confirm the runs table filters to only in-progress rows; click again to clear
• Manual: open the suite detail page for that suite, confirm the indicator appears and is scoped to this suite
• Manual: select "In progress" from the Status dropdown on the suite detail page, confirm the table filters correctly (was broken before this PR)
• Manual: confirm no indicator renders when no live runs are present