tests: BUG-8 ws reconnect RED, BUG-7 reorder no-undo doc, ws _test accessor

server/tests/ws-reconnect.test.js: subscribe, write (fires), force-drop WS,
write again (must still fire). RED on current. wsReady=null after drop,
no reconnect, subscribers dead forever. Display frozen.

src/storage/ws.js: added _test accessor (getWs, forceDrop, getReady,
docSubs, collSubs) for reconnect test. Test-only, no behavior change.

TODO: BUG-7 (reorder no undo), BUG-8 (ws reconnect) added.

TODO.md

@@ -96,6 +96,17 @@
 - Fix: reorder must also update turnOrderIds to match new participant order
   (within same-initiative tie).
 
+### BUG-7: reorderParticipants has no undo
+- Test: `shared/tests/turn.undo.test.js` 'reorderParticipants has no undo' (GREEN doc).
+- `reorderParticipants` returns `log: null`. Other ops return `log.undo`.
+- Cannot undo drag-drop. Candidate for undo system (M6).
+
+### BUG-8: ws adapter has no reconnect
+- Test: `server/tests/ws-reconnect.test.js` (RED).
+- WS dies (idle/error/close) → `wsReady=null`, subscribers dead forever.
+- Display frozen until full reload.
+- Fix: `onclose` → reconnect + re-subscribe existing paths.
+
 ## Pipeline
 - [ ] Red test: dead participant still in turnOrderIds, turn still advances to them
 - [ ] Fix `shared/turn.js`: don't drop dead from turn order