feat: launch Protect Today from deadline reminders (Closes #723)

frontend/dashboard.js

@@ -6058,10 +6058,27 @@
     if (!preserveRoute) workRoute.queue(filter);
     return true;
   }
-  function openWorkQueueRoute(filter) {
+  async function openWorkQueueRoute(filter, action = null) {
     if (!selectWorkQueue(filter, { preserveRoute:true })) return;
     qs('#my-work').scrollIntoView({block:'start'});
     qs('#my-work').focus();
+    if (action !== 'protect-today') return;
+    await completeAgendaIssues();
+    if (workPagination.issue?.has_more) {
+      qs('#my-work-action-status').textContent =
+        'Protect Today needs all assigned deadlines. Retry when connected.';
+      return;
+    }
+    const proposal = protectToday.propose({
+      agenda:agendaMyWork(activeMyWork), today:todayMyWork,
+      identity:item => todayWork.identity(item), limit:todayWork.limit,
+    });
+    if (!proposal.protected.length) {
+      qs('#protect-today-status').textContent = 'No overdue or due-today work needs protection.';
+      return;
+    }
+    pendingProtectToday = proposal;
+    openPlanToday(qs('#protect-today'));
   }
   qs('#work-milestone-filter').addEventListener('change', event => {
     selectedWorkMilestone = event.target.value;

frontend/service-worker.js

@@ -314,12 +314,14 @@ self.addEventListener('push', event => {
   try { payload = event.data?.json?.() || {}; }
   catch (_error) { return; }
   const route = String(payload.route || '');
+  const protectRoute = String(payload.protect_route || '');
   const tag = String(payload.tag || '');
   const notificationId = Number(payload.notification_id);
   const updateCount = Number(payload.update_count);
   const deadlineCount = Number(payload.deadline_count);
   if (
     route === '#/my-work/agenda'
+    && protectRoute === '#/my-work/agenda/protect-today'
     && /^stackchain-deadline-digest-\d{4}-\d{2}-\d{2}$/.test(tag)
     && Number.isSafeInteger(deadlineCount)
     && deadlineCount > 0
@@ -330,7 +332,11 @@ self.addEventListener('push', event => {
       {
         body: 'Open Agenda to review or replan ' + (deadlineCount === 1 ? 'it.' : 'them.'),
         tag,
-        data: {route},
+        actions: [
+          { action: 'protect-today', title: 'Protect Today' },
+          { action: 'open-agenda', title: 'Open Agenda' },
+        ],
+        data: {route, protectRoute},
       }
     ));
     return;
@@ -380,6 +386,22 @@ async function openWorkRoute(route) {
 
 self.addEventListener('notificationclick', event => {
   const route = String(event.notification.data?.route || '');
+  if (event.action === 'protect-today') {
+    const protectRoute = String(event.notification.data?.protectRoute || route);
+    if (
+      protectRoute !== '#/my-work/agenda/protect-today'
+      || !['#/my-work/agenda', protectRoute].includes(route)
+    ) return;
+    event.notification.close();
+    event.waitUntil(openWorkRoute(protectRoute));
+    return;
+  }
+  if (event.action === 'open-agenda') {
+    if (route !== '#/my-work/agenda') return;
+    event.notification.close();
+    event.waitUntil(openWorkRoute(route));
+    return;
+  }
   if (event.action === 'tomorrow') {
     const notificationId = Number(event.notification.data?.notificationId);
     if (

frontend/work-route.js

@@ -20,6 +20,9 @@
     if (queueFilters.includes(queue) && parts.length === 3) {
       return { kind: 'queue', filter: queue };
     }
+    if (queue === 'agenda' && parts[3] === 'protect-today' && parts.length === 4) {
+      return { kind: 'queue', filter: 'agenda', action: 'protect-today' };
+    }
     if (parts[2] === 'update' && parts.length === 4) {
       const notificationId = positiveInteger(parts[3]);
       return notificationId ? { kind: 'update', notification_id: notificationId } : null;
@@ -114,7 +117,7 @@
         if (active && active !== fragment) onClose();
         if (active === fragment) return;
         active = fragment;
-        onQueue(route.filter);
+        onQueue(route.filter, route.action || null);
         return;
       }
       const item = items.find(candidate => sameRoute(candidate, route));