v0.12.286 — Solana batch-settlement (opt-in)

Solana batch-settlement (opt-in)

Pay Solana chat calls for what they actually cost. With
CLAWROUTER_SOLANA_BATCH=1, chat calls on the Solana rail use x402
batch-settlement instead of one exact transfer per call. The first call
opens a payment channel with BlockRun using a small deposit. Each call after
that carries an authorization for its ceiling, and the gateway charges only
the tokens the call used. One on-chain transaction covers many calls. It is
off by default.

• ClawRouter uses @blockrun/llm's SolanaBatchPayer, the same payer
  SolanaLLMClient ships, with BlockRun's operator key pinned as the only
  trusted operator.
• The deposit is escrow, capped by CLAWROUTER_SOLANA_BATCH_MAX_DEPOSIT
  ($1 by default). A channel idle for 3 days is closed by BlockRun and the
  unused escrow returns to the wallet automatically.
• Spend limits work the same: maxCostPerRun and the spend policy check each
  batch payment before it is signed, and only if you set them.
  maxCostPerRun books what each call was actually charged.
• A batch payment whose outcome is unknown is never paid again: no exact
  fallback, no retry, no next model. The request fails with
  payment_in_doubt.
• Only non-streaming chat completions use batch. Images, audio, video and
  other endpoints stay on exact.

Dependencies

• @x402/* 2.28 and @blockrun/llm 3.23.1. The SDK's new default spend
  controls are switched off; ClawRouter keeps enforcing its own limits, as
  before.

• dist no longer bundles the Anthropic SDK, which ClawRouter does not use
  (0.65MB smaller).

• Thanks to @SkinGem, whose #435 started Solana batch-settlement in
  ClawRouter.