fix(turn): block cross-pointer reorder (BUG-13)

reorderParticipants allowed dragging across current pointer mid-round.
nextTurn walks turnOrderIds forward from pointer, so cross-pointer drag
= ambiguous who-acts-next: upcoming dragged ahead of pointer = skipped
(walk wraps past), acted dragged behind pointer = double-act.

Full fix needs actedThisRound tracking. Pragmatic now: block both
directions during active encounter. Pre-combat: free reorder (no pointer).

reorderParticipants: added pointer check (currentTurn index). If drag
crosses pointer, return null patch (no-op). Same-side reorder allowed.
syncTurnOrder now always mirrors (was started-only — pre-combat reorder
left turnOrderIds stale).

Tests:
- turn.bug13.test.js: cross-pointer blocked (both dirs), same-side allowed,
  pre-combat free.
- turn.reorder.test.js: 3 tests updated to pre-combat (cross-pointer now
  blocked post-start).
- turn.invariant.test.js: reorder test uses same-side upcoming pair.

214 tests green.

TODO.md

@@ -8,19 +8,11 @@ Backlog of bugs + long-term items. Milestones live in REWORK_PLAN.md.
 - `reorderParticipants` returns `log: null`. Other ops return `log.undo`.
 - Cannot undo drag-drop. Candidate for undo system (M6).
 
-### BUG-13: reorderParticipants crossing current pointer = ambiguous acted-semantics
-- `reorderParticipants` (shared/turn.js) = pure drag, no pointer logic.
-- Swapping two actors across current pointer mid-round = ambiguous
-  who-acted-this-round. Replay avoids crossing (adjacent upcoming pair only).
-- Real app untested: if DM drags actor past current pointer mid-round, skip/
-  double behavior undefined.
-- Decide: block cross-pointer reorder, or define acted-semantics. RED needed.
-
 ## Open features
 
 ### FEAT-2: upgrade app internal logs to be parseable
 - Goal: combat logs in storage store enough structured state to run
-  skip/rotation analysis on ANY historic round — not just replay stdout.
+  skip/rotation analysis on ANY historic round --- not just replay stdout.
 - Current logs: `{timestamp, message, encounterName, undo}`. Parser must
   guess roster from message strings. Brittle.
 - Upgrade: add structured fields at turn-state mutation log sites in
@@ -32,11 +24,6 @@ Backlog of bugs + long-term items. Milestones live in REWORK_PLAN.md.
 - Then `scripts/analyze-turns.js` ingests app logs directly (adapter fetch).
   Works on real game sessions, any round, deterministic.
 
-### FEAT-3: initiative first-class entry (add + edit)
-- Current: only initMod at char-build. No initiative field at add-participant
-  or edit. 3-step to set after other steps.
-- Need: initiative field at add-char, add-monster, AND edit participant.
-- Related: tie-break = drag order (current, works). Expose clearly.
 
 ### FEAT-M6: Transactional undo (moved from REWORK_PLAN)
 - Every mutating action writes event: `(type, payload, undo_payload, undone, ts)`.
@@ -57,6 +44,12 @@ Backlog of bugs + long-term items. Milestones live in REWORK_PLAN.md.
 ### Test integrated timeouts
 - No per-test timeout. Tests hang on regression. Add jest timeout (<60s).
 
+### add participants duplication throws a alert but it disappears fast
+
+### add particopents list dropdown - remove ones already added
+
+
+
 ## Done (history)
 
 ### Architecture: 1-list turn order model
@@ -75,51 +68,62 @@ Backlog of bugs + long-term items. Milestones live in REWORK_PLAN.md.
 - FIXED (addParticipant throws on dup id).
 
 ### BUG-4: hide-player-HP breaks display view
-- FIXED — mock honors setDoc{merge}, all 5 activeDisplay sites use merge.
+- FIXED --- mock honors setDoc{merge}, all 5 activeDisplay sites use merge.
 
 ### BUG-5: mid-round addParticipant/revive corrupts rotation
-- FIXED — slot-array + DRY advance core `nextActiveAfter`.
+- FIXED --- slot-array + DRY advance core `nextActiveAfter`.
 
 ### BUG-6: reorderParticipants doesn't update turnOrderIds
 - FIXED structurally by 1-list model.
 
 ### BUG-8: server adapter has no reconnect
-- FIXED — onclose reconnects + re-subscribes existing paths.
+- FIXED --- onclose reconnects + re-subscribes existing paths.
 
 ### BUG-10: deact+reactivate same round double-acts participant
-- FIXED — 1-list model keeps slot position on toggle. Reactivate does not
+- FIXED --- 1-list model keeps slot position on toggle. Reactivate does not
   grant second turn. Test: turn.bug10.test.js.
 
 ### BUG-11: FE Combat.scenario test crashes
-- FIXED — moved to shared/turn.combat.test.js, pure functions, 100 rounds.
+- FIXED --- moved to shared/turn.combat.test.js, pure functions, 100 rounds.
 
 ### BUG-12: campaign selection follows activeDisplay
 - FIXED.
 
+### BUG-13: reorderParticipants crossing current pointer = ambiguous acted-semantics
+- FIXED --- block cross-pointer reorder during active encounter (both dirs).
+  Full fix needs actedThisRound tracking. Pragmatic block prevents skip/double.
+  Pre-combat: free reorder.
+
 ### BUG-14: addParticipant init-insertion breaks after drag-reorder
-- FIXED — slotIndexForInit scans current list (post-drag aware).
+- FIXED --- slotIndexForInit scans current list (post-drag aware).
 
 ### BUG-15: DisplayView re-sorts (drag order not preserved)
-- FIXED — display renders participants[] directly.
+- FIXED --- display renders participants[] directly.
 
 ### BUG-16: subscribeCollection hook drops queryConstraints
-- FIXED — neutral builders, both adapters honor orderBy/limit.
+- FIXED --- neutral builders, both adapters honor orderBy/limit.
 
 ### BUG-17: dead SDK imports in App.js
-- FIXED — trimmed (auth + getFirestore + getStorage remain).
+- FIXED --- trimmed (auth + getFirestore + getStorage remain).
 
 ### BUG-18: stale comments reference deleted memory adapter
 - FIXED.
 
 ### FEAT-1: Dead participants stay in turn order
-- DONE — applyHpChange no longer flips isActive on death. Dead stay in
+- DONE --- applyHpChange no longer flips isActive on death. Dead stay in
   rotation, nextTurn visits them, PCs get death-save turn.
 
 ### feat: add all characters to participants list
-- DONE — addParticipants bulk add wired (App.js:943).
+- DONE --- addParticipants bulk add wired (App.js:943).
 
 ### Warning = failure in tests
-- DONE — console.error/warn throw in test env.
+- DONE --- console.error/warn throw in test env.
 
 ### combat.scenario 100 rounds not turns
-- DONE — loops by actual round-wrap count.
+- DONE --- loops by actual round-wrap count.
+
+### FEAT-3: initiative first-class entry (add + edit) DONE
+- Current: only initMod at char-build. No initiative field at add-participant
+  or edit. 3-step to set after other steps.
+- Need: initiative field at add-char, add-monster, AND edit participant.
+- Related: tie-break = drag order (current, works). Expose clearly.