feat(validator): add VALIDATOR_ env vars for independent block limits (backport #21060)#21132
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Summary
Backport of #21060 to v4. Redone from scratch on current v4 tip (after #21115 landed).
VALIDATOR_MAX_L2_BLOCK_GAS,VALIDATOR_MAX_DA_BLOCK_GAS,VALIDATOR_MAX_TX_PER_BLOCK, andVALIDATOR_MAX_TX_PER_CHECKPOINTenv vars so operators can tune validation limits independently fromSEQ_proposer limitsVALIDATOR_var is not set, no per-block limit is enforced for that dimension (checkpoint-level protocol limits still apply)VALIDATOR_MAX_TX_PER_BLOCKwhen set, falling back to the sequencer'smaxTxsPerBlockbuildBlockduring re-execution andvalidateCheckpointfor final validationChanges from previous attempt (#21109)
The previous backport (#21109, now closed) was done before other PRs landed on v4 and became unmergeable. This is a clean redo on top of the current v4 tip where all prerequisites (
validateCheckpoint,computeDAGasUsed,maxTxsPerCheckpoint) already exist.Build verified clean: http://ci.aztec-labs.com/80f4d462d5b81f2f
ClaudeBox log: http://ci.aztec-labs.com/5215aa10b97d3ffe-1