fix(runs): stop test run list rows from overflowing and overlapping

[therealbrad]

Problem

On the project Test Runs page, the list rows rendered their columns with a CSS grid that used minmax(auto, …) tracks plus hard min-width floors (min-w-48 on the forecast column, min-w-12 on the status column). Those minimums refused to shrink, so on a narrower row the columns pushed past the row's overflow-hidden container and clipped or crammed into each other — the status, forecast, and summary text visibly ran together and got cut off. Because each row is its own grid, the content-based auto minimums also made columns land at slightly different widths from row to row.

Changes

• Grid sizing: every column track is now minmax(0, fr), so columns shrink to fit the row instead of overflowing, and resolve to the same width on every row for consistent alignment.
• Status & forecast cells: given min-w-0 / overflow-hidden and dropped the hard floors, so their content truncates within the column rather than widening the track.
• Forecast text now truncates with an ellipsis (the existing hover tooltip still shows the full value); the leading icons are shrink-0.
• Workflow state name now truncates with an ellipsis instead of a hard mid-word clip, reusing the existing [&>span]:!shrink [&>span]:!min-w-0 override so the shared WorkflowStateDisplay doesn't need to change.
• Milestone visibility: completed runs (shown as a flat list) display their milestone, while active runs (already grouped under milestone headers, where it's redundant) no longer repeat it. The milestone detail page keeps its own behavior.

Testing

• tsc --noEmit clean
• Full precommit suite passed (zenstack format, lint, format check, 9419 unit tests)

Visual layout change — best confirmed by loading the Test Runs page (Active and Completed tabs) and a milestone detail page.

[therealbrad]

🎉 This PR is included in version 0.38.1 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀