side-track: livepeer-python-gateway — fail fast on signer HTTP 483 insufficient balance

Summary

Side-track (non-blocking for clearinghouse deliverables). Tracks the gateway consumer of the remote-signer 483 insufficient_balance contract.

When the identity webhook / balance gate denies signing (allowance exhausted), go-livepeer returns HTTP 483. The Python gateway must fail fast — no orchestrator fallback — and surface InsufficientBalance to callers.

Implementation

Open PR: livepeer/livepeer-python-gateway#44

• Map signer HTTP 483 → InsufficientBalance
• Fail fast in LV2V and BYOC/training payment paths (no orch retry)

Why side-track

This is gateway + go-livepeer wire-protocol work that pairs with clearinghouse’s balance gate (483 / trial_credits_exhausted), but lives outside this repo and should not block D2.

Related

• Gateway PR: https://github.com/livepeer/livepeer-python-gateway/pull/44
• Clearinghouse identity-webhook balance gate / exchange mapping: PRs #64, #66
• go-livepeer remote-signer webhook wire (483 insufficient_balance)

Start with livepeer/livepeer-python-gateway#44 and inspect the signer HTTP 483 handling plus the LV2V and BYOC/training payment paths. Done means the gateway maps 483 insufficient_balance to InsufficientBalance, fails fast without orchestrator fallback, and surfaces it to callers.