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chore(port): forward-port v5-next prover + node/world-state backlog to next#24933

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chore(port): forward-port v5-next prover + node/world-state backlog to next#24933
PhilWindle wants to merge 4 commits into
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Forward-ports the prover and node / world-state / barretenberg slices of the v5-next → next backlog (work merged to v5-next after the ~2026-07-08 cut that reshaped next).

Applied (clean cherry-picks, chronological)

⚠️ Needs owner conflict-resolution (conflict against reshaped next; not included here)

Cherry-pick onto this branch and resolve:

Part of the manual v5-next → next backlog sweep. Draft until conflicts are resolved and CI is green.

AztecBot and others added 4 commits July 23, 2026 11:02
…state (#24578)

v5 version of #24558 (same change, based on `merge-train/spartan-v5`).

## Problem

When the prover broker cancelled a proving job it settled the job as a
cached `{ status: 'rejected', reason: 'Aborted' }` result — in memory
and in the database. Because a job's id is a deterministic hash of its
inputs, any later enqueue of the same job returned that cached abort
(`Cached proving job … Not enqueuing again`) and the facade failed the
job with `Aborted`. So once a proof was aborted it stayed aborted, and a
retry — a fresh epoch attempt after a reorg/failure, or a
re-orchestration after a restart — got the cached abort instead of
re-proving. A planned mid-epoch redeploy hit this and turned into a
testnet epoch prune.

## Fix

Cancellation is now its own first-class, **revivable** state:

- A new `aborted` proving-job status (`ProvingJobStatus` /
`ProvingJobSettledResult`). `cancelProvingJob` records it, notifies the
current waiter, and **persists** it
(`ProvingBrokerDatabase.setProvingJobAborted`).
- `enqueueProvingJob` **revives** an aborted job: when the producer
re-requests it, the broker clears the aborted state — in memory and, via
the new `deleteProvingJobResult`, in the database — and re-enqueues it
as if new. So a restart mid-revival keeps the job pending rather than
resurrecting the abort. Genuine agent errors and timeouts still settle
as terminal `rejected` results.

Net effect: cancelling frees the job cleanly and records why, but
re-requesting the same proof always brings it back to life — in the same
process or after a restart — so an abort can never permanently block an
epoch from proving.

The stacked PR (prover-node clean-shutdown, v5) stops a clean
prover-node shutdown from cancelling its in-flight jobs in the first
place.

## Tests

`proving_broker.test.ts` (both DB variants): cancel leaves a job
`aborted`; re-request revives it and it completes; the aborted state
persists across a restart; and a revived job survives a restart
mid-revival as pending (not aborted).

Note: not run locally in this session — the prover-client suite needs a
full noir/wasm bootstrap that wasn't available here — so relied on CI.

---
*Created by
[claudebox](https://claudebox.work/v2/sessions/6fa5e242ed9ceae7) ·
group: `slackbot`*

---------

Co-authored-by: Phil Windle <philip.windle@gmail.com>
(cherry picked from commit a4e88ca)
…poch (#24436)

Resolves A-1290.

## Problem

A `CheckpointProver`'s sub-tree work forks world-state per block. When
an L1 reorg prunes a base block, those fork reads fault and the prover
permanently rejects its one-shot `blockProofs` promise.

The store keeps the prover alive across a prune (`markPruned`) so a
re-add of identical content can reuse its in-flight work. But a prune
that removes the checkpoint also breaks the fork reads, so that reuse
only ever hands back a poisoned prover: a re-add or a full
`EpochSession` recreate re-references the same rejected `blockProofs`
and fails immediately. The affected node then silently abandons the
epoch until a process restart (a healthy prover elsewhere still proves
it, so it's not a network stall).

## Fix

**Drop the reuse machinery — a pruned prover cannot survive, so rebuild
instead of reuse.**

- `CheckpointStore.cancelAndRemoveAboveBlock` cancels and **removes**
orphaned provers (replacing `markPrunedAboveBlock`); a re-add builds a
fresh prover with a fresh `blockProofs`.
- Removed the `pruned` flag / `markPruned` / `markCanonical` from
`CheckpointProver`, and the `SlotWatcher` that only reaped lingering
pruned provers.
- `listCanonical` / `addOrUpdate` simplified — every prover in the store
is now canonical.

**Recover the epoch by rebuilding on re-add, rather than trying to
prevent the terminal state.**

A prune unwinds world-state as soon as it's detected — before the
prover-node cancels the affected session — so a checkpoint prover
mid-fork faults while still live and its session goes terminal `failed`.
That race is inherent (the world-state rejection and the prover being
cancelled are unordered), so instead of trying to reclassify it as a
cancellation, we make the terminal state harmless:

- `SessionManager.openFullSessionIfReady` no longer treats a terminal
session as "already open" — it drops it and rebuilds. So re-adding an
epoch's checkpoints reopens a fresh live session over fresh provers, via
the checkpoint/prune triggers (ungated by the tick high-water mark).
This reopen depends on the store no longer holding the poisoned prover:
with the reuse machinery gone the rebuilt session gets a fresh prover
with a healthy `blockProofs`, so it can actually prove rather than
re-inheriting the rejected one.
- `runSession` skips the failure-upload when the session's checkpoints
no longer match canonical content — a prune-invalidated failure isn't a
genuine proving failure, so it no longer emits a spurious post-mortem
upload / alert.

The only non-recovered case is "content pruned and never re-added"
(chain stops publishing that epoch's checkpoints) — there's nothing to
prove on this node then, so abandoning the epoch is correct.

**Cancel the pruned prover's in-flight work promptly.**
`CheckpointProver` now threads its abort signal into
`PublicProcessor.process`, so a prune-driven cancel stops the current
block's public execution immediately instead of running it to completion
before the next `signal.aborted` check. This is independent of the
recovery logic above — it just avoids wasting CPU re-executing a block
whose checkpoint is being discarded. The in-flight block has not yet
enqueued a broker proof, so aborting it loses no reusable work.

### Note: broker-level proof reuse is unaffected

Removing the `CheckpointProver`-level reuse does not waste proving work.
The expensive part — the SNARK proofs — is cached in the proving broker,
content-addressed by job id, independent of world-state.
`cancelJobsOnStop` defaults to `false`, so cancelling a prover does not
abort its broker jobs; on an identical re-add the fresh prover
regenerates identical inputs, and the broker dedups against the cached
jobs/results (bounded by the broker's per-epoch cleanup). The reuse we
deleted was witness-generation reuse, whose world-state forks cannot
survive a prune anyway.

## Testing

- `session-manager.test.ts`: pins the retry/recovery invariant — the
periodic tick does not re-attempt a failed epoch (gated by
`lastTickEpoch`), but a checkpoint re-add recovers it (ungated); a
`failed` session's epoch is reopened once its checkpoints are re-added;
a genuine proving failure still uploads a post-mortem; a failure
coinciding with a canonical content change (prune) skips the upload.
(Red/green verified for both the gate and the upload suppression.)
- `checkpoint-store.test.ts` / `prover-node.test.ts`: pruned provers are
cancelled and removed (not flagged); a re-add builds a fresh prover.
- `checkpoint-prover.test.ts`: cancelling a prover mid-block aborts the
signal its public execution is running under (red/green verified).
- Full prover-node suite passes (166 tests); package typechecks clean;
lint OK.
- Updated `optimistic.parallel.test.ts` (the e2e that spawned this
issue) to the cancelled+removed semantics.

## Notes

- No operator/contract-dev-facing config or API changed, so no changelog
entry.
- The terminal `failed` state is not prevented, only recovered from: the
world-state unwind and the prover cancellation are unordered, so the
failure can't be reliably reclassified from the session side. Recovering
on re-add is deterministic and needs no such race to be won.

(cherry picked from commit c1e6229)
Upstreaming the utilities build for `aztec-kit` so external projects can
benefit from our e2e scaffolding. Essentially the same thing we already
use, but pure ts rather than the unpublishable .sh script. Verified with
`ci-full-no-test-cache`

(cherry picked from commit 7e09008)
…l validation (#24694)

## Problem

On a live mainnet node, checkpoint-proposal validation could throw an
uncaught error out of the
gossipsub message handler whenever it ran while the world-state
synchronizer trailed the archiver
(block source) by a block:

```
ERROR world-state:database Call CREATE_FORK failed: Error: Unable to initialize from future
  block: 117860 unfinalizedBlockHeight: 117859. Tree name: NullifierTree
ERROR p2p:libp2p_service Error handling gossipsub message: Error: Unable to initialize from
  future block: 117860 unfinalizedBlockHeight: 117859. Tree name: NullifierTree
```

The archiver already had block N (so the block lookups inside checkpoint
validation succeeded), but
world state's `unfinalizedBlockHeight` was still N-1. When
`validateCheckpointProposal` forked world
state at the parent block before it had been applied, the raw tree error
escaped as an uncaught
ERROR-level gossipsub message. The node lost that checkpoint
validation/attestation for the round and
spammed error logs; it self-healed the next tick, but it should not
happen.

## Root cause

The two world-state fork sites were asymmetric. The block re-execution
path (`reexecuteTransactions`)
syncs world state *before* forking. The checkpoint validation path
(`validateCheckpointProposal`)
forked via `checkpointsBuilder.getFork` *without* a preceding sync. The
checkpoint path does sync the
block source (archiver) earlier, but that does not advance the world
state, so the gap remained.

## Fix

- Move the sync-before-fork invariant into
`FullNodeCheckpointsBuilder.getFork`: it now calls
`worldState.syncImmediate(blockNumber, blockHash)` before
`worldState.fork(blockNumber)`, so the
single fork helper owns the invariant rather than each caller.
`syncImmediate` blocks until world
state reaches the block, or throws a typed error if it genuinely cannot,
instead of leaking the raw
  tree error.
- In `validateCheckpointProposal`, look up the parent block's hash from
the block source and pass it
through so the sync re-syncs on a world-state reorg. Wrap the fork in a
try/catch that maps any
failure to a clean, non-slashable `world_state_not_synced` result, so a
sync/fork failure never
  surfaces as an uncaught ERROR-level gossipsub message.
- As a second, independent guard, check that the forked world state's
archive root matches the
proposal's `lastArchiveRoot` before rebuilding the checkpoint. A
mismatch means world state forked
from a different chain than the proposal was built on, so we fail fast
with a clean, non-slashable
`initial_archive_mismatch` result — mirroring the block-proposal
re-execution check — instead of a
  confusing downstream header/archive mismatch.

Both new reasons record an `unvalidated` outcome and are non-slashable,
matching the other
"we couldn't validate right now" / local-state-divergence reasons.

Other checkpoint-builder fork sites were reviewed and need no change:
the proposer's
`checkpoint_proposal_job` forks at its own already-synced,
coherence-checked world-state tip, and the
block-proposal re-execution path already syncs before forking and
performs the equivalent
archive-root check.

## Tests

- `checkpoint_builder.test.ts`: `getFork` syncs world state to the block
before forking, and
  propagates a sync failure without forking.
- `proposal_handler.test.ts`: forks at the parent block number passing
its block hash; a fork failure
returns `world_state_not_synced`; and a fork whose archive root diverges
from the proposal returns
  `initial_archive_mismatch`.

## Notes

The same bug exists on the v4 line — the v4 site is the same function,
forking via
`this.worldState.fork(parentBlockNumber)` directly without a preceding
`syncImmediate`. This fix
should be ported there as well.

Fixes A-1421

(cherry picked from commit b7a7d1b)
@PhilWindle PhilWindle added ci-draft Run CI on draft PRs. ci-no-squash labels Jul 23, 2026
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