chore(modules): expose wrapped budget timeout ✅

[MuncleUscles]

Problem

The pinned manager at 89c20400f77b647b0e7649f58be0212a4bd6f004 catches a direct BudgetExhausted error but misses the CallbackError wrapper that a real Lua llm.exhaust() callback produces. The LLM handler then returns a module failure instead of the timeout sentinel consumed by the executor.

This draft adds a focused expected-red unit test. It leaves the production matcher unchanged for the manager owner to repair.

Evidence and validation

• The test invokes an actual async Lua callback, verifies the nested CallbackError { cause: ExternalError(BudgetExhausted) } shape, and checks that both direct and wrapped errors become consumed_gen = U256::MAX. The direct control passes; the wrapped assertion currently fails with INSUFFICIENT_EXECUTION_BUDGET.
• A temporary local matcher branch for that exact wrapper made the test pass 1/1. It was removed, and the unchanged pinned manager reran expected-red 0/1. Rust formatting and diff checks pass. The focused Cargo test was run with the project's Lua and lsqlite build inputs; the Darwin Nix shell cannot evaluate its Linux-only glibc dependency.
• Related node conformance #2085 reproduced the same raw InternalError with a working provider and genuine low user allocation against exact consensus #1692. The node fallback still sent a semantically correct Timeout vote and the chain stored LeaderTimeout; no chain revert or idleness sanction is claimed.

The manager v0.6-dev branch was exactly at the pinned revision when this branch was cut. Open manager #45 changes fee input structures but not this handler; no open manager PR changes implementation/src/llm/handler.rs or this test. No executor gitlink, dependency pin, production code, full E2E, or merge is changed here.

[coderabbitai]

Important

Draft PR not reviewed

Draft PRs are not automatically reviewed by default.

• Trigger a manual review

To automatically review draft PRs, update your CodeRabbit configuration:

reviews:
  auto_review:
    drafts: true

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}

[github-actions]

GenVM PR actions

Tick a box to run it (the box unticks itself when handled). Actions only run while the PR has the ci-safe label.

• Force run full tests
• Provision executor PRs

Commands

• /genvm-run-tests — run full tests once for the current manager snapshot
• /merge — queue the exact manager snapshot through the App-owned E2E merge train