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).

tasks/parametrize-base-branch/IMPLEMENTATION.md

@@ -0,0 +1,35 @@
+# Implementation: parametrize-base-branch
+
+## SCOPE
+
+Replace hardcoded `"main"` in `_gate_worktree_drift` with `blast_radius.base_branch` config field. Source: `add-status-brakes/BUG_REPORT.md` O3.
+
+## FILES TOUCHED
+
+- `scripts/status.py`
+  - Added `_base_branch(cfg) -> str`: reads `cfg.get("blast_radius", {}).get("base_branch")` → `"main"`.
+    - `None` (missing key) → `"main"` (silent).
+    - Empty string → `"main"` with stderr WARNING.
+    - Non-string type (int, bool, etc.) → `str(value)` with WARNING.
+  - `_gate_worktree_drift`: replaced `"main...HEAD"` with `f"{base}...HEAD"` where `base = _base_branch(cfg)`.
+- `templates/loops/self-improvement/loop.json`: added `"base_branch": "main"` to `blast_radius`.
+
+## BUGS FOUND
+
+None. The bad-revision path and empty-file_scope checks are unchanged from v1.
+
+## DECISIONS LOCKED
+
+- D-B1: one base branch per loop (not a list).
+- D-B2: default `"main"`.
+- D-B3: bad-revision → WARNING skip (not halt), preserved from v1.
+- D-B4: empty string → `"main"` with WARNING (not silent).
+- D-B5: no backfill on v1 loops (helper default covers them).
+- D-B6: tests mock `subprocess.run`.
+- D-B7: template is the public-facing default.
+
+## TESTS
+
+New file `tests/test_base_branch.py` — 13 tests across 2 classes.
+
+Test count: 495 passed (482 + 13).