v0.2.3

Added

• Zenoh API v2 FeatureState contract -- new FeatureState, NumericRange, and CommandResult wire types expose live feature introspection (is_implemented / is_available / access_mode / numeric range / enum_available) per node; introspect queryable wired into viva-service and viva-service-u3v. Legacy NodeValueUpdate stays wire-compatible. See ADR-010.
• GenApi predicate evaluation -- NodeMap::is_implemented, is_available, effective_access_mode, and available_enum_entries evaluate pIsImplemented / pIsAvailable / pIsLocked / per-enum-entry predicates via the existing resolve_numeric machinery (Integer / Boolean / SwissKnife / IntConverter / Converter / Enum providers all supported, with cycle detection)
• Predicate refs on every NodeDecl variant -- PredicateRefs (p_is_implemented / p_is_available / p_is_locked) parsed from <pIsImplemented> / <pIsAvailable> / <pIsLocked> and plumbed through NodeMap::try_from_xml with proper dependency registration; Node::predicates() exposes the refs for external evaluators
• Realistic predicate wiring in the fake GigE camera -- ExposureTime.pIsLocked ← ExposureAuto != Off, Gain.pIsLocked ← GainAuto != Off, AcquisitionFrameRate.pIsAvailable ← new AcquisitionFrameRateEnable Boolean, PixelFormat entries gated by a new SensorType enum (Monochrome / BayerRG / Color)

Changed

• DeviceHandle::get_feature_state now reports live is_implemented / is_available / access_mode / enum_available from the predicate evaluators instead of hardcoded permissive defaults; each predicate call is guarded so a single bad formula doesn't break the whole feature snapshot

Fixed

• Float bit-pattern bug -- <FloatReg> and bare <Float> with Length in {4, 8} and no <Scale>/<Offset> now auto-infer IEEE 754 encoding. Before this fix, AcquisitionFrameRate came back as 1106247680 (the f32 bit pattern of 30.0) and ExposureTime as 4662219572839973000 because float registers were always read as scaled i64. New FloatEncoding (Ieee754 / ScaledInteger) + byte_order on NodeDecl::Float; get_float / set_float dispatch on encoding.