fix(outbox) : resolve server-only imports in worker

tests/deployment-contract.test.ts

@@ -102,12 +102,23 @@ describe("production deployment contract", () => {
       "ENV NEXT_PUBLIC_GOOGLE_ADSENSE_CLIENT_ID=${NEXT_PUBLIC_GOOGLE_ADSENSE_CLIENT_ID}",
     );
     expect(dockerfile).toContain("backend/discord.ts");
+    expect(dockerfile).toMatch(
+      /bun build scripts\/outbox-worker\.ts[\s\S]*?--conditions=react-server[\s\S]*?--outfile=dist\/outbox-worker\.js/u,
+    );
     expect(dockerfile).toMatch(
       /bun build backend\/discord\.ts[\s\S]*?--conditions=react-server[\s\S]*?--outfile=dist\/discord\.js/u,
     );
     expect(dockerfile).toContain("./worker/discord.js");
   });
 
+  it("runs the outbox worker with server-only module resolution locally", async () => {
+    const packageJson = JSON.parse(await repositoryFile("package.json"));
+
+    expect(packageJson.scripts["worker:outbox"]).toBe(
+      "bun --conditions=react-server scripts/outbox-worker.ts",
+    );
+  });
+
   it("verifies first, publishes immutable images, and migrates before rollout", async () => {
     const workflow = await repositoryFile(".gitea/workflows/ci.yml");