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/project-scoping-enforcement/BUG_REPORT.md

@@ -1,22 +0,0 @@
-# Bug Report: project-scoping-enforcement
-
-## Summary
-Critical process violation: the agent performed all implementation work before creating a task, completely bypassing the framework's workflow enforcement.
-
-## Bugs Found
-
-### Bug 1: No framework self-enforcement prevents untasked work (Critical)
-- **Severity**: Critical
-- **Location**: Agent behavior, not code
-- **Description**: The agent identified 7 scoping issues, then directly implemented all fixes across 20+ files without first creating a task through `status.py --create-task`. The task was only created *after* all work was done, as a retrospective documentation exercise.
-- **Reproduction**: Any agent session where the user asks for work to be done. Nothing prevents the agent from editing files directly.
-- **Suggested Fix**: This is a behavioral fix, not a code fix. The agent should always create a task first for any non-trivial work, then implement within that task's phase constraints.
-
-### Bug 2: Process gap — no automated check that edits have a corresponding task
-- **Severity**: Medium  
-- **Location**: Framework enforcement model
-- **Description**: `status.py --can-edit` only checks if a *task* is in the right phase for code edits. But it doesn't verify that the files being edited are *within* that task's scope. An agent can create task "foo" for project A, then edit files in project B without any task at all.
-- **Suggested Fix**: Future enhancement — `--can-edit` could optionally check that the files being modified are relevant to the task's SPEC.md or DESIGN.md scope.
-
-## Score
-+10 (Bug 1 is a process violation worth documenting; Bug 2 is a future enhancement)