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/rewrite-vram-detection-python/SPEC.md

@@ -1,32 +0,0 @@
-# SPEC: Rewrite VRAM Detection as Python Script
-
-## Goal
-Replace the fragile `scripts/vram_detect.sh` with a testable Python script that produces the same JSON output.
-
-## Requirements
-1. Create `scripts/vram_detect.py` with the same CLI interface:
-   - `--model` / `-m`
-   - `--project` / `-p`
-   - Optional positional model name
-2. Preserve the human-readable output sections and the `=== JSON Output ===` block.
-3. Fix known bugs:
-   - Undefined `$headroom_pct` in manual mode.
-   - Hardcoded `"headroom": 0.25` in JSON output.
-   - GPU-counting/output ordering bug.
-   - Enforce 10KB file-read limit for API config files.
-4. Delete `scripts/vram_detect.sh`.
-5. Update references in `prompts/orchestrate.md`, `prompts/decompose.md`, `prompts/onboarding.md`, `README.md`, and `config.md` to point to the Python script.
-
-## Acceptance Criteria
-- [ ] `python scripts/vram_detect.py` runs and emits valid JSON.
-- [ ] Manual-mode headroom is read from `config.md`, not hardcoded.
-- [ ] Large API config files are read with a 10KB limit.
-- [ ] `scripts/vram_detect.sh` no longer exists.
-- [ ] All prompts/docs reference the Python script.
-
-## Non-Goals
-- Changing the recommendation algorithm.
-- Adding GPU vendor detection beyond Linux `nvidia-smi`, `lspci`, and `/proc/meminfo`.
-
-## Stop Condition
-When all acceptance criteria are met, output "CONTRACT_MET".