fix: make Draft admission retry-safe (Closes #631)

frontend/dashboard.js

@@ -4220,6 +4220,7 @@
       const durableDraft = {
         ...captureDraft,
         attachment: await createIssueAttachmentController.serialize(),
+        ...(rUC ? { sourceCaptureId: rUC } : {}),
         ...(createAndStartRequested ? { completionIntent: 'create-and-start' } : {}),
       };
       const admission = editingOutboxId ? await issueOutbox.updateDurably(editingOutboxId, durableDraft) :

frontend/issue-outbox.js

@@ -51,6 +51,8 @@ function createIssueOutbox({ storage, fetchJson, coordinator, backgroundSync, ge
       status: 'queued',
       queuedAt: Number(now()),
     };
+    const sourceCaptureId = String(draft?.sourceCaptureId || '').trim().slice(0, 128);
+    if (sourceCaptureId) item.sourceCaptureId = sourceCaptureId;
     if (draft?.completionIntent === 'create-and-start') item.completionIntent = 'create-and-start';
     const attachment = captureAttachment(draft?.attachment);
     if (attachment) item.attachment = attachment;
@@ -76,6 +78,9 @@ function createIssueOutbox({ storage, fetchJson, coordinator, backgroundSync, ge
 
   function enqueue(draft, mirror = true) {
     const items = read();
+    const sourceCaptureId = String(draft?.sourceCaptureId || '').trim().slice(0, 128);
+    const existing = sourceCaptureId && items.find(item => item.sourceCaptureId === sourceCaptureId);
+    if (existing) return { ...existing };
     const item = prepareItem(draft);
     items.push(item);
     write(items, mirror);
@@ -83,6 +88,16 @@ function createIssueOutbox({ storage, fetchJson, coordinator, backgroundSync, ge
   }
 
   async function enqueueDurably(draft) {
+    const sourceCaptureId = String(draft?.sourceCaptureId || '').trim().slice(0, 128);
+    const existing = sourceCaptureId && read().find(item => item.sourceCaptureId === sourceCaptureId);
+    if (existing) {
+      if (!backgroundSync?.reconcile || !backgroundSync?.requestSync) {
+        return { item: { ...existing }, background: false, durability: 'foreground-only', reused: true };
+      }
+      await backgroundSync.reconcile(read());
+      await backgroundSync.requestSync();
+      return { item: { ...existing }, background: true, durability: 'background', reused: true };
+    }
     if (!backgroundSync?.reconcile || !backgroundSync?.requestSync) {
       const item = enqueue(draft, false);
       return { item, background: false, durability: 'foreground-only' };