Drop Deno from the agents and spawn child processes directly

src/auth.test.ts

@@ -17,7 +17,7 @@ test("retries once after an invalid refresh token", async () => {
   const result = await retryInvalidToken(
     () =>
       Promise.resolve({
-        status: { success: false },
+        code: 1,
         error: attempts++ === 0 ? "ERROR: invalid_refresh_token" : "still failed",
       }),
     () => {
@@ -40,7 +40,7 @@ test("does not retry an unrelated failure", async () => {
     () => {
       attempts++;
       return Promise.resolve({
-        status: { success: false },
+        code: 1,
         error: "rate limited",
       });
     },
@@ -86,7 +86,7 @@ test("re-logs in after the job 9837 revoked-session stderr", async () => {
   const result = await retryInvalidToken(
     () =>
       Promise.resolve({
-        status: { success: attempts++ > 0 },
+        code: attempts++ > 0 ? 0 : 1,
         error: attempts === 1 ? REVOKED_CODEX.join("\n") : "",
       }),
     () => {
@@ -95,9 +95,9 @@ test("re-logs in after the job 9837 revoked-session stderr", async () => {
     },
   );
 
-  expect({ relogins, success: result.status.success }).toStrictEqual({
+  expect({ relogins, code: result.code }).toStrictEqual({
     relogins: 1,
-    success: true,
+    code: 0,
   });
 });