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

apps/server/test/auth-settings/sse-pg.test.ts

@@ -13,7 +13,7 @@ const hasPg = await pgAvailable();
 const SERVER_DIR = fileURLToPath(new URL("../..", import.meta.url));
 
 function proc(args: string[]) {
-  const child = spawn(process.execPath, ["run", "-A", "test/fixtures/sse-bus-proc.ts", ...args], {
+  const child = spawn(process.execPath, ["test/fixtures/sse-bus-proc.ts", ...args], {
     cwd: SERVER_DIR,
     env: { ...process.env, DATABASE_URL: PG_URL },
     stdio: ["ignore", "pipe", "pipe"],