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/standardize-task-path-conventions/VERDICT.md

@@ -1,18 +0,0 @@
-# Verdict: Standardize Task Path Conventions
-
-## Status: PASS
-**Completion Date**: 2026-06-14
-
-## Summary
-All prompts now use the canonical task path `{project}/.automaton/tasks/{task-name}/`. A regression test prevents reintroduction of the deprecated path.
-
-## Findings
-- All 10 affected prompt files updated.
-- No legacy paths remain in `prompts/` or `templates/`.
-- Regression test passes.
-
-## Remaining Issues
-None.
-
-## Score
-+10 PASS