# Phase 5: Stale Containers UI

**Status:** ⬜ Not Started
**Parent plan:** [PLAN.md](./PLAN.md)
**Domain:** frontend

## Objective
Build the stale containers dashboard widget and dedicated view, with cleanup actions and settings configuration.

## Tasks

- [ ] Task 1: Add API functions in api.ts: fetchStaleContainers, cleanupStaleContainer, bulkCleanupStaleContainers
- [ ] Task 2: Create StaleContainerCard component — shows: container name, project, stage, image tag, last alive timestamp, "X days stale" badge (color-coded by severity)
- [ ] Task 3: Create stale containers section on dashboard (+page.svelte) — count badge, mini-list of top 5 offenders, "View all" link
- [ ] Task 4: Create dedicated route `/containers/stale` with full stale container list
- [ ] Task 5: Individual cleanup action — ConfirmDialog with warning, calls cleanup API
- [ ] Task 6: Bulk cleanup action — "Clean up all" button with confirmation, progress indicator
- [ ] Task 7: Settings integration — add stale_threshold_days field to settings page with validation (min 1 day)
- [ ] Task 8: Add navigation link or sub-nav for stale containers
- [ ] Task 9: Add i18n keys for stale containers

## Files to Modify/Create
- `web/src/lib/api.ts` — Add stale container API functions
- `web/src/lib/types.ts` — Add StaleContainer interface
- `web/src/lib/components/StaleContainerCard.svelte` — NEW: Stale container display
- `web/src/routes/+page.svelte` — Add stale containers dashboard widget
- `web/src/routes/containers/stale/+page.svelte` — NEW: Dedicated stale view
- `web/src/routes/containers/stale/+page.ts` — NEW: Data loader
- `web/src/routes/settings/+page.svelte` — Add stale threshold setting field
- `web/src/routes/+layout.svelte` — Add nav link if needed

## Acceptance Criteria
- Dashboard shows stale container count and top offenders
- Dedicated page lists all stale containers with details
- Individual cleanup removes container with confirmation
- Bulk cleanup works with progress feedback
- Settings page allows configuring stale threshold
- Severity coloring: 7-14 days = yellow, 14+ days = red
- Responsive layout

## Notes
- Reuse existing ConfirmDialog for destructive actions
- Dashboard widget should not slow down initial page load (lazy load or small payload)
- Stale container data comes from GET /api/containers/stale (Phase 2)
- Settings update uses existing PUT /api/settings endpoint

## Review Checklist
- [ ] All tasks completed
- [ ] Code follows project conventions
- [ ] No unintended side effects
- [ ] Build passes
- [ ] Tests pass (new + existing)

## Handoff to Next Phase
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