feat(FN-2512): add elapsed timer chip to task cards

- Derive task elapsed time from columnMovedAt with updatedAt/createdAt fallbacks and guard against invalid or future timestamps
- Render a clock-based timer chip on in-progress and done cards with accessible labeling and tooltip metadata
- Add TaskCard styles for the timer row/chip using design tokens, including mobile-size adjustments
- Expand TaskCard tests to cover visibility by column, invalid timestamp suppression, boundary label formatting, and 30s live refresh cadence

.changeset/fix-dashboard-tui-agent-run-logs.md

@@ -0,0 +1,5 @@
+---
+"@runfusion/fusion": patch
+---
+
+Fix dashboard TUI agents view run history rendering to use readable status labels and allow opening selected run logs reliably.