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/fix-verdict-pass-inference/DOC_REVIEW.md

@@ -1,12 +0,0 @@
-# Doc Review: fix-verdict-pass-inference
-
-## Summary
-No documentation updates needed. The verdict parsing is an internal heuristic used only for pre-v2.0 task upgrades.
-
-## Findings
-- The `--upgrade` command is documented in AGENTS.md and README.md, but the inference logic itself is not documented.
-- The fix aligns `status.py` with the dashboard's `parse_verdict_status()` — no API change.
-- No user-facing behavior change for v2.0 tasks (which use `.state` files, not artifact inference).
-
-## Verdict
-No doc changes required.