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/add-outputs-retention/IMPLEMENTATION.md

@@ -0,0 +1,42 @@
+# Implementation: add-outputs-retention
+
+## SCOPE
+
+Add `loop.json` `outputs.retention` field (default 20) to bound growth of the `outputs/` directory. GC runs after step 10 inside `_loop_lock`, deleting tick groups older than the retention window. Source: `add-loop-runner/BUG_REPORT.md` O5.
+
+## FILES TOUCHED
+
+- `scripts/loop-runner.py`
+  - Added `_get_retention(cfg) -> int`: reads `cfg.get("outputs", {}).get("retention", 20)`. Non-int types fall back to 20 with WARNING. Negative values are coerced to 0 (unlimited) with WARNING.
+  - Added `_gc_outputs(loop_path, retention)`: lists `outputs/`, finds max tick index from filenames matching `^tick(\d+)-`, computes `cutoff = max_seen - retention + 1`, deletes files with tick index < cutoff. Non-tick files (`README.txt`, etc.) are preserved. Errors logged as WARNING via `_append_tick_log` and swallowed.
+  - Modified `cmd_tick`: calls `_get_retention(cfg)` + `_gc_outputs(loop_path, retention)` after step 10 (`_write_state_loop`) and before step 11 (tick log), inside the `_loop_lock` block.
+  - Updated docstring step list: added `10.5. GC outputs/...`.
+- `templates/loops/self-improvement/loop.json`
+  - Added `"outputs": {"retention": 20}` block.
+
+## BUG FOUND AND FIXED INLINE
+
+**Off-by-one in GC formula**: the initial implementation used `cutoff = max_seen - retention`, which kept `retention + 1` tick groups (21 instead of 20 for retention=20). Fixed to `cutoff = max_seen - retention + 1`. Test `test_gc_keeps_recent_deletes_old` caught this (expected 20 kept, got 21 remaining → obvious failure when the remaining-count length check triggered).
+
+## DECISIONS LOCKED
+
+- **D-O1**: retention counts tick GROUPS (all `tick{N}-*` files), not individual files.
+- **D-O2**: GC runs INSIDE `_loop_lock` critical section (after state write, before tick log).
+- **D-O3**: Default 20.
+- **D-O4**: 0 = unlimited (no GC). Negative coerces to 0 with WARNING.
+- **D-O5**: GC based on `outputs/` filenames (`max_seen`), NOT `state.iteration_count`.
+- **D-O6**: Regex `^tick(\d+)-`. Non-matching files preserved.
+- **D-O7**: GC failure → WARNING log + swallow.
+
+## TESTS
+
+New file `tests/test_outputs_retention.py` — 13 tests across 2 classes:
+
+- `TestGetRetention` (5): default `main`, explicit value, negative→0, non-int→20, None cfg→20.
+- `TestGcOutputs` (8): deletes old keeps recent, retention=0 skip, retention>count, missing dir, non-tick files preserved, unrelated `tick-foo` prefix preserved, single tick, error path.
+
+## TEST COUNT
+
+- Baseline: 469 passed (post-`harden-parse-verdict`).
+- New: +13 in `tests/test_outputs_retention.py`.
+- Final: **482 passed**, 0 regressions.