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/wire-dashboard-config/IMPLEMENTATION.md

@@ -0,0 +1,25 @@
+# Implementation: Wire DashboardConfig + Add Caching + Add Size Limits
+
+## Summary
+- Added `GET /api/config` endpoint returning `config.to_dict()`
+- Added `PUT /api/config` endpoint accepting JSON body, validating via `DashboardConfig.validate()`, and persisting to `dashboard-config.json`
+- Added server-side task cache with 1-second TTL (`_get_cached_tasks`, `_invalidate_task_cache`)
+- `_serve_tasks` and `_serve_task` now use cached task list instead of calling `discover_tasks()` on every request
+- `_serve_review_summary` uses cached task list instead of iterating filesystem
+- Writing a review (`POST /api/task/{name}/review`) invalidates cache
+- R3 (content-length bounds) already implemented in harden-dashboard-security task
+- Dashboard.js now fetches `/api/config` on init and applies `theme`, `default_view`, `column_width`, `show_timelines`, `auto_refresh_interval`
+- Removed hardcoded `setInterval(refreshData, 2000)` — refresh interval is now config-driven
+- CORS headers updated to include `PUT` method
+
+## Changes
+- `automaton/dashboard/ui/app.py`: Added `_task_cache`, `_get_cached_tasks`, `_invalidate_task_cache`, `_serve_config`, `_handle_config_update`, `do_PUT`; wired `DashboardHandler.config` class attribute; `_serve_tasks`, `_serve_task`, `_serve_review_summary` use cache; cache invalidation in `_handle_review`; CORS updated with PUT
+- `automaton/dashboard/html/dashboard.js`: Added `fetchConfig`, `applyConfig`; updated `startAutoRefresh` to accept interval; `DOMContentLoaded` now async and fetches config before starting refresh
+- `tests/test_app.py`: Added `TestTaskCache` (3 tests) and `TestConfigEndpoint` (4 tests)
+
+## Test Results
+126 passed in 0.09s
+Dashboard starts (port conflict on 8080 is environmental, not a bug)
+
+## Blockers
+None