Plutus `1.67.0.0-wasm32.1`

Combined upstream changes since `1.65.0.0`

The current browser consumer moves directly from 1.65.0.0-wasm32.1, so this summary compresses both
intervening upstream releases. See the official 1.66.0.0
and 1.67.0.0 release notes, or the
1.65.0.0...1.67.0.0 combined comparison.

Compiler and evaluator: added RecInline and CollapseCase optimization passes; fixed an unsound
FloatDelay transformation; improved asData list-casing code generation.
Builtins and future protocol work: added multiIndexArray (CIP-0156, behind futurePV) and
policies (CIP-0168, expected for PV12); aligned host-language builtin definitions with on-chain
bounds and failure semantics.
Value and ledger APIs: exported inclusive interval-bound helpers; optimized valueOf and
unionWith; added unsafeLovelaceValueOf, broader Value re-exports/comparisons, and draft Plutus
V4 script-context types.
CLI and serialization: made textual Value parsing enforce canonical keys, non-zero quantities,
and 128-bit bounds; added extension-based format inference, shell completion, worked help examples,
and early rejection of unsupported PLC formats.
Maintenance: replaced deriving-aeson cost-model instances without changing their JSON format,
removed the obsolete BuiltinCasing plugin option, and improved metatheory certifier performance.

Rebuilt the fork as six dependency-ordered patches: evaluator semantics, WASI tests, reproducible build
outputs, automation, documentation, and repository governance.
Bound every GitHub release operation explicitly to lambdasistemi/plutus; the tagged workflow no longer
depends on persistent-runner Git remote state.
Updated the artifact guide for this release, including direct download/checksum commands and the browser
WASI hosting contract.
Added a repository-local maintain-wasm32-fork agent skill plus a mechanical stack validator for future
upstream bumps and same-base revisions.

The evaluator behavior is unchanged from .0; this revision repairs maintainability, tagged publication,
and consumer documentation.

plutus-core-test: 2350 passed
untyped-plutus-core-test: 883 passed
plutus-ir-test: 363 passed
index-envs-test: 36 passed
satint-test: 17 test groups passed, including 10,000-case arithmetic properties
flat-test: 1689 passed
haskell-conformance: 2008 passed
standalone uplc.wasm: evaluates the smoke program to (con integer 42) and reports its ExBudget

0847734eadb767b8ac6a8e0803db78db0fae2374d823335629818ff172c5b249  uplc.wasm