Wire up cloud reqs in exec, app-server (#10241)

We're fetching cloud requirements in TUI in
https://github.com/openai/codex/pull/10167.

This adds the same fetching in exec and app-server binaries also.

codex-rs/Cargo.lock

@@ -1088,6 +1088,7 @@ dependencies = [
  "codex-arg0",
  "codex-backend-client",
  "codex-chatgpt",
+ "codex-cloud-requirements",
  "codex-common",
  "codex-core",
  "codex-execpolicy",
@@ -1487,6 +1488,7 @@ dependencies = [
  "assert_cmd",
  "clap",
  "codex-arg0",
+ "codex-cloud-requirements",
  "codex-common",
  "codex-core",
  "codex-protocol",