Archive completed tasks, add cleanup commands, self-documenting dashboard UI

- Archive 79 completed framework-dev tasks from tasks/ -> tasks/complete/
- status.py: add --cleanup-done and --install-cleanup-schedule commands
- Add scripts/automaton-cleanup.sh for periodic task archiving
- Dashboard: rename 'Background' tab -> 'Agent', 'Cleanup' agent -> 'Completed Task Archiver', remove redundant group headers and pill badges, dim inactive agent placeholders
- .rules.md: add Self-Documenting UI Names rule
- New tests: test_cleanup_done.py, expanded test_app.py and test_task.py

tasks/implement-task/.state

@@ -1 +0,0 @@
-complete

tasks/implement-task/ADVERSARIAL_BUG_REPORT.md

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-# Adversarial Bug Report: Dashboard Implementation
-
-## Findings
-
-### Finding 1: Critical
-- **Issue**: File system watcher doesn't handle inotify permission errors on some systems
-- **Impact**: High - dashboard may crash when starting on systems without inotify
-- **Fix**: Add try/except around inotify initialization, fall back to polling
-
-### Finding 2: Medium
-- **Issue**: Dashboard doesn't handle tasks with spaces in folder names
-- **Impact**: Medium - task names may display incorrectly
-- **Fix**: Escape special characters in task names

tasks/implement-task/BUG_REPORT.md

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-# Bug Report: Dashboard Implementation
-
-## Findings
-
-### Finding 1: Minor
-- **Issue**: Filter bar doesn't update column headers immediately when filtered
-- **Impact**: Low - columns still show all tasks
-- **Fix**: Re-render board after filter changes

tasks/implement-task/DOC_REVIEW.md

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-# Doc Review: Dashboard Implementation
-
-## Findings
-
-### Finding 1: Missing
-- **Issue**: README.md doesn't document the filter bar keyboard shortcuts
-- **Impact**: Low - users won't know how to use filters
-- **Fix**: Add filter bar shortcuts to README
-
-### Finding 2: Missing
-- **Issue**: README.md doesn't explain how scope detection works
-- **Impact**: Low - users won't know the difference between framework and project mode
-- **Fix**: Add scope detection explanation to README

tasks/implement-task/IMPLEMENTATION.md

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-# Implementation: Dashboard
-
-## Summary
-The dashboard has been implemented with all core features.
-
-## Changes
-- Created core modules: scope, task, board, stats, timeline, refresh
-- Created UI components: header, board, card, detail_panel, stats_view, timeline_view, filter_bar, search_bar
-- Created main application: app.py
-- Created configuration management: config.py
-- Created color themes: themes.py
-
-## Tests
-- Dashboard renders correctly for all views
-- Task discovery works with various artifact combinations
-- Scope detection works for framework and project modes

tasks/implement-task/REVIEW.md

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-# Review
-- **Status**: approved
-- **Timestamp**: 2026-06-13T21:08:38.941451

tasks/implement-task/SPEC.md

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-# Contract: Dashboard Implementation
-
-## Goal
-Implement the interactive terminal dashboard for the automaton framework.
-
-## Acceptance Criteria
-- [x] Board view works
-- [x] Statistics view works
-- [x] Timeline view works
-- [x] Filter bar works
-- [x] Search bar works
-- [x] Auto-refresh works
-
-## Stop Condition
-CONTRACT_MET

tasks/implement-task/VERDICT.md

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-# VERDICT: Dashboard Implementation
-
-## Summary
-The dashboard implementation is mostly complete and functional.
-
-## Findings
-
-### Finding 1: Minor
-- **Status**: Accepted
-- **Issue**: Filter bar doesn't update column headers immediately
-- **Resolution**: Will be fixed in a follow-up task
-
-### Finding 2: Medium
-- **Status**: Accepted
-- **Issue**: Dashboard doesn't handle inotify permission errors
-- **Resolution**: Will be fixed in a follow-up task
-
-### Finding 3: Medium
-- **Status**: Accepted
-- **Issue**: Dashboard doesn't handle tasks with spaces in folder names
-- **Resolution**: Will be fixed in a follow-up task
-
-## Doc Review Findings
-
-### Finding 1: Missing
-- **Status**: Accepted
-- **Issue**: README.md doesn't document filter bar shortcuts
-- **Resolution**: Will be fixed in a follow-up task
-
-### Finding 2: Missing
-- **Status**: Accepted
-- **Issue**: README.md doesn't explain scope detection
-- **Resolution**: Will be fixed in a follow-up task
-
-## VERDICT: PASS
-
-All findings are minor and accepted. The dashboard is functional and ready for use.