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/state-file-enforcement/VERDICT.md

@@ -1,24 +0,0 @@
-# VERDICT: State File Enforcement
-
-
-## Status: PASS
-## Summary
-Implemented `.state` file as single source of truth for task phase, with approval sub-states (awaiting_approval/approved), atomic writes, forbidden artifacts per phase, task creation gate, and full transition validation in status.py.
-
-## Phase Results
-| Phase | Result |
-|-------|--------|
-| Implementation | ✅ PASS |
-| Bug Find | ✅ PASS (1 minor finding) |
-| Adversarial Bug Find | ✅ PASS |
-| Doc Review | ✅ PASS |
-
-## Findings
-- All acceptance criteria met
-- Minor: `.gitignore` pattern for `.state` not explicitly enforced at project level (documented as metadata only)
-- Minor: Concurrent `--create-task` race condition is theoretically possible but unlikely in practice
-
-## Final Verdict
-**PASS** — All acceptance criteria met. The .state file enforcement mechanism is complete and working. All tests pass.
-
-Score: +10