Restore archived tasks, fix dashboard scroll-reset, bind ornith, add Playwright smoke test

- **Restore 82 completed tasks** from tasks/complete/ back to tasks/ top
  level (all <7 days old per the cleanup policy; premature bulk archive
  was fixed).
- **Dashboard: fix scroll-reset on auto-refresh** — renderBoard rebuilds
  the board via innerHTML every 2s, destroying each column-body's
  scrollTop. Now snapshots column-body scrollTop + board.scrollLeft +
  view.scrollTop before rebuild and restores after (matched by
  PHASE_GROUPS index).
- **Dashboard UI additions** (pre-existing unstaged work): approval
  section cards, transition buttons, inline artifact editor (textarea for
  writing missing SPEC/VERDICT/etc from the detail modal).
- **Bind ornith as Implement model** — config.md: Model explicit to
  omlx/Ornith-1.0-35B-4bit-mlx, context window 32768. Interactive
  autopilot already used ornith via opencode default; now explicit.
- **Fix cleanup stub** — automaton-cleanup.sh had a stale --project arg
  pointing at a pytest temp dir (test isolation leak). Rewired to point
  at ~/.automaton.
- **Fix plist-isolation test** — test asserted host plist doesn't exist,
  but a real install creates it. Now snapshots mtime before run, asserts
  unchanged after (only a write during the test counts as bleed).
- **New Playwright smoke test** (tests/test_dashboard_ui.py) — 2 tests:
  board renders tasks, column scroll survives auto-refresh tick.
  Verified the test fails without the scroll fix (scrollTop resets to 0).
  Skipped via importorskip when playwright is absent (main CI stays
  green).
- **Clarify SI loop scope in README** — new-project onboarding section
  documents the framework-scoped self-improvement loop and options
  (leave/pause/create project loop).
- **CHANGELOG** documents all changes including the known model-divergence
  gap (mde tasks marked complete but per-role model binding was never
  implemented).

README.md

@@ -72,6 +72,18 @@ ln -sf ~/.automaton/scripts/git-hooks/pre-commit .git/hooks/pre-commit
 
 This hook blocks commits when no task is in `implement` or `doc_review` phase, preventing accidental code changes without a tracked task.
 
+### The Self-Improvement Loop is framework-scoped
+
+The self-improvement loop installed by default targets the **framework itself** (`work_source.project: ~/.automaton/`), not your project. It ticks hourly against `status.py --audit` on `~/.automaton/` to keep the framework healthy. This is by design — it improves the framework you depend on while you work on your project.
+
+- **Leave it running** if you want the framework maintained in the background (recommended).
+- **Disable it** if you want zero background activity: `python3 ~/.automaton/scripts/status.py --pause-loop self-improvement --project ~/.automaton/`
+- **Want a loop on your project too?** Create a separate one targeted at the project root:
+  ```bash
+  python3 ~/.automaton/scripts/status.py --create-loop my-project-loop \
+    --from-template self-improvement --project /path/to/project
+  ```
+
 ---
 
 ## The Autopilot Workflow