refactor(core): migrate to Bun and converge acquisition policies and Agent boundaries

packages/tasks/test/crash-recovery.test.ts

@@ -22,7 +22,7 @@ const WORKER = fileURLToPath(new URL("./fixtures/worker.ts", import.meta.url));
 const PKG_DIR = fileURLToPath(new URL("..", import.meta.url));
 
 function startWorker(env: Record<string, string>): Promise<ChildProcess> {
-  const child = spawn(process.execPath, ["run", "-A", WORKER], {
+  const child = spawn(process.execPath, [WORKER], {
     cwd: PKG_DIR,
     env: { ...process.env, SCHEMA: schemas.biz, OW_SCHEMA: schemas.ow, ...env },
     stdio: ["ignore", "pipe", "pipe"],