Two production-essential fixes that surfaced during the path-A TTS
deployment to Vector testnet:
1. localUPLCEval: false on every Plutus V3 spend
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lucid-evolution 0.4.30's CML WASM UPLC evaluator has a false-rejection
bug for our V3 spend pattern: it rejects perfectly valid txs with
"failed script execution Spend[0] the validator crashed / exited
prematurely" while the chain itself accepts them without complaint.
Routing eval to Ogmios's evaluateTransaction (cardano-node's
evaluator) sidesteps the WASM bug and returns correct ex-units.
OgmiosLucidProvider.evaluateTx already implements this path.
This also unblocks the 5 tx-submit-live tests previously skipped
with the comment "UPLC wasm crashes" (M1-F-D-defer / task #28).
Without this fix, every Claim/Submit/Accept tx from our supplier
was failing locally before reaching the chain. The third-party
summitstak.ing supplier worked because it uses a different
toolchain that does not run client-side phase-2 evaluation.
2. AdvertDatum BigInt coercion
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cbor-x emits float64 (`fb` prefix) for JS Number values that can't
fit CBOR's compact int forms (e.g. POSIX-ms timestamps). Plutus
Data has no float type, so CML.PlutusData.from_cbor_hex panics
with "RuntimeError: unreachable" when it sees one. Coerce
max_output_tokens, max_processing_ms, advertised_at to BigInt
before encoding so cbor-x always emits major-type-0/1 integers.
Mirrors the intAsBig pattern already used in EscrowDatum.
3. Live-CBOR PostAdvert builder
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M1-F-4 deferred postAdvert/updateAdvert/retireAdvert/reclaim/
release on the live path. With (1) and (2) in place, posting an
advert via tx:post-advert against Vector testnet now works.
Added buildLiveTxForAdvert in liveCbor.ts (mirrors PostEscrow)
and routed buildPostAdvertTx through it when chain is live.
40 advert/post-advert tests still pass. Verified end-to-end on
Vector testnet: TTS advert posted at
5df793ac12dc426fae7a7a01d56d3e923d3985103d62f0182d9ba63dda871f96#0,
full chat + TTS marketplace lifecycle (PostEscrow → Claim → Submit →
Accept) confirmed completing successfully on chain.
7ea7328eed