fix(fees): align Studio execution budget floor with Consensus

[MuncleUscles]

Problem and outcome

The v0.6 JS/Studio lane in genlayer-e2e #796 fails 054_fee_consensus_parity: Studio's sim_getFeeConfig reports an execution-budget admission floor of 76,548,000,000,000 wei while the updated Consensus policy reports 78,852,000,000,000 wei. Studio still priced a 512-byte receipt for admission. Consensus now reserves the configured 1,024-byte receipt wrapper plus 64 terminal-output bytes.

This PR makes Studio's admission quote and validation use the same receipt-byte floor as Consensus. At the default receipt price, the floor and derived default fee deposit rise by 2,304,000,000,000 wei.

Delivery context

Depends-On: genlayerlabs/genlayer-consensus#1692

Target: v0.123-dev at a0300c398528f743465c4e060c80877ced3873c5. The composed qualification source is genlayer-e2e #796, with Node #2017. The separate JS SDK fallback correction is genlayer-js #223; E2E #796 includes both PRs. Studio #1774 is a separate draft GenVM allocation change with different hunks in fees.py and a temporary source pin; it is excluded from this fee-floor cut.

Implementation and validation

• Price receiptWrapperBytes + 64 through the existing proposed-receipt gas formula. Keep the legacy 512-byte estimator for its other callers.
• Check the canonical 78.852-trillion-wei quote, a non-default wrapper, exact-floor admission, floor-minus-one rejection, and post-activation top-ups under a locked policy.
• Studio fee suite: 477 passed.
• Studio unit suite: 1,635 passed with host socket permissions. The first sandboxed attempt passed 1,623 and blocked 12 Unix-socket tests; all 12 passed at host level.
• Changed-file pre-commit hooks and git diff --check: passed.

The admission floor is a protocol compatibility change. A Studio transaction funded at the former floor may need a top-up after this revision; the locked-policy top-up test covers formula and price selection. Full cross-repository E2E qualification remains with #796 after it includes this PR.

User-facing release notes

Studio fee estimates now match the v0.6 minimum execution budget required by Consensus.

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