* refactor: TUI dashboard cleanup, dedup, and feature improvements
- Extract shared format-utils.ts: formatDuration, padRight, joinColumns,
centerLine, fitColumns, sparkline, stripAnsi — eliminating 3× duplication
across dashboard-overlay, visualizer-views, and auto-dashboard
- Use shared STATUS_GLYPH/STATUS_COLOR from ui.ts consistently across all
overlay and view files instead of hardcoded Unicode glyphs
- Fix redundant dynamic import('node:fs') in visualizer-data.ts (statSync
already imported at top level)
- Replace (entry as any) casts with proper SessionMessageEntry type narrowing
- Add mtime-based file content cache for visualizer data loader to avoid
re-parsing unchanged roadmap/plan files on every refresh
- Increase visualizer refresh interval from 2s to 5s (with mtime cache,
unchanged files are effectively free)
- Fix sparkline to use loop-based max instead of Math.max(...values) to
avoid stack overflow on large arrays
- Add ETA/time-remaining estimate to progress widget and dashboard overlay
based on average unit duration from metrics ledger
- Show warning glyph for budget-pressured units in completed units list
(continueHereFired units now show ⚠ instead of ✓)
- Add terminal resize (SIGWINCH) handling to both overlays — invalidates
cache and re-renders on window size change
- Fix dispose race in dashboard overlay close path — now calls dispose()
before onClose() to prevent timer callbacks firing after teardown
- Add 23 unit tests for format-utils.ts (including 100k-element sparkline)
- Add 2 tests for estimateTimeRemaining
- Add source-contract tests for resize handler and shared imports
* fix: use STATUS_GLYPH.warning instead of STATUS_GLYPH.statusWarning
STATUS_GLYPH is keyed by ProgressStatus ("warning"), not by GLYPH
property name ("statusWarning"). Fixes typecheck failure in CI.
1ea653b5fc