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/framework-self-enforcement/ADVERSARIAL_BUG_REPORT.md

@@ -1,11 +0,0 @@
-# Adversarial Bug Report: Framework Self-Enforcement
-
-## Deep Review
-Rules in .rules.md are enforceable only if the agent follows them. No automated enforcement exists. The session discipline rule is concrete (with past failure example) which improves compliance.
-
-## Potential Issues
-1. **Circular startup**: system-prompt.md says read .rules.md, .rules.md says check config.md, config.md reference is static — no circular risk.
-
-2. **Rule enforcement gap**: The rules are instructions to the agent, not automated checks. An agent that ignores .rules.md will bypass all enforcement.
-
-## Verdict: PASS — rules are well-structured, enforcement relies on agent compliance.