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/complete/add-post-commit-autopilot-driver/IMPLEMENTATION.md

@@ -0,0 +1,11 @@
+# Implementation: Post-Commit Autopilot Reminder
+
+## Changes
+- Created `scripts/git-hooks/post-commit`
+- Reads `.agent.md` for autopilot mode
+- Scans non-terminal tasks via `status.py --list`
+- Prints summary with count and command to run orchestrator
+- Always exits 0 (informational only)
+
+## Files Created
+- `scripts/git-hooks/post-commit`: ~45 lines