fix(offline): harden sync catch + add queue/sync test coverage + atomic transactions

src/lib/offline/queue.test.ts

@@ -2,7 +2,15 @@
 // src/lib/offline/queue.test.ts
 import { describe, it, expect, beforeEach } from "vitest";
 import "fake-indexeddb/auto";
-import { enqueueAction, dequeueAction, getQueuedActions, markSynced, markConflict } from "./queue";
+import {
+  enqueueAction,
+  dequeueAction,
+  getQueuedActions,
+  markSynced,
+  markConflict,
+  markInFlight,
+  markFailed,
+} from "./queue";
 
 beforeEach(async () => {
   // Clear the queue between tests
@@ -61,4 +69,45 @@ describe("offline queue", () => {
     expect(all[0].status).toBe("conflict");
     expect(all[0].error).toBe("stale updated_at");
   });
+
+  it("markInFlight transitions the action to in-flight and records an attempt", async () => {
+    const a = await enqueueAction("markOrderReady", { orderId: "abc" });
+    const before = await getQueuedActions();
+    expect(before[0].attempts).toBe(0);
+    expect(before[0].status).toBe("pending");
+    expect(before[0].lastAttemptAt).toBeNull();
+
+    const beforeMs = Date.now();
+    await markInFlight(a.id);
+    const afterMs = Date.now();
+
+    const all = await getQueuedActions();
+    expect(all).toHaveLength(1);
+    expect(all[0].status).toBe("in-flight");
+    expect(all[0].attempts).toBe(1);
+    expect(typeof all[0].lastAttemptAt).toBe("number");
+    expect(all[0].lastAttemptAt).not.toBeNull();
+    expect(all[0].lastAttemptAt!).toBeGreaterThanOrEqual(beforeMs);
+    expect(all[0].lastAttemptAt!).toBeLessThanOrEqual(afterMs);
+  });
+
+  it("markFailed transitions the action to failed and increments attempts", async () => {
+    const a = await enqueueAction("markOrderReady", { orderId: "abc" });
+    // Pretend it has already been tried once
+    await markInFlight(a.id);
+
+    const beforeMs = Date.now();
+    await markFailed(a.id, "server returned 500");
+    const afterMs = Date.now();
+
+    const all = await getQueuedActions();
+    expect(all).toHaveLength(1);
+    expect(all[0].status).toBe("failed");
+    expect(all[0].attempts).toBe(2); // markInFlight set it to 1, markFailed adds 1
+    expect(all[0].error).toBe("server returned 500");
+    expect(typeof all[0].lastAttemptAt).toBe("number");
+    expect(all[0].lastAttemptAt).not.toBeNull();
+    expect(all[0].lastAttemptAt!).toBeGreaterThanOrEqual(beforeMs);
+    expect(all[0].lastAttemptAt!).toBeLessThanOrEqual(afterMs);
+  });
 });