fix: serialize Week-to-Today replay across tabs

frontend/dashboard.js

@@ -391,7 +391,7 @@
   });
   const weekPlan = createWeekPlan({
     fetchJson:fetchReviewJson,localDate:todayRollover.localDate,timeZone:todayRollover.timeZone,
-    storage:localStorage,getLogin:() => planningOwnerLogin,
+    storage:localStorage,getLogin:() => planningOwnerLogin,coordinator:outboxCoordinator,
   });
   function openWeekPlanner(trigger) { planningTomorrow=false; return weekFlow.open(trigger); }
   function renderTomorrowQueueSummary(value) {

frontend/week-plan.js

@@ -1,4 +1,4 @@
-function createWeekPlan({fetchJson,localDate,timeZone,storage,getLogin,now=()=>Date.now()}={}) {
+function createWeekPlan({fetchJson,localDate,timeZone,storage,getLogin,coordinator,now=()=>Date.now()}={}) {
   let week={revision:0,timezone:null,days:[]};
   let flushing=null;
   let lastConflict=null;
@@ -530,7 +530,7 @@ function createWeekPlan({fetchJson,localDate,timeZone,storage,getLogin,now=()=>D
   function flushPull() {
     if(pulling)return pulling;
     if(!pendingPull()||!pullKey())return Promise.resolve(false);
-    pulling=(async()=>{
+    const run=async()=>{
       let result,lastResult=false;
       while(pendingPull()){
         const current=pendingPull();
@@ -564,7 +564,9 @@ function createWeekPlan({fetchJson,localDate,timeZone,storage,getLogin,now=()=>D
       }
       adoptConfirmed(lastResult.week,{...confirmedItems,...pendingItems});
       return {...lastResult,sync_pending:false};
-    })().finally(()=>{pulling=null;});
+    };
+    const delivery=coordinator?coordinator.runExclusive('week',run):run();
+    pulling=Promise.resolve(delivery).finally(()=>{pulling=null;});
     return pulling;
   }
   async function startEarly(planDate,todayRevision) {