Note

Medium Risk
Changes paywall override/visibility resolution semantics for a new condition type; behavior is well-tested but incorrect wiring later could silently leave state-driven overrides inert until snapshots are passed.

Overview
Implements real state extended-condition evaluation for Paywalls V2 component overrides, replacing the previous stub that always failed.

ConditionContext now carries a presentation-session snapshot (stateValues) plus declared stateDefaults. UIConfigProvider.conditionContext forwards those fields (defaulting to empty) so callers can supply store data when available.

Override resolution compares expected ConditionValues with type-strict rules (string/bool/int/double, numeric cross-type with epsilon). Missing store values use declared defaults; keys absent from both store and defaults never match (including notEquals), unlike missing custom variables.

Extensive PresentedPartialsTests cover equality, defaults, undeclared keys, AND with other conditions, and visibility override precedence.

Note: Component resolver call sites still invoke conditionContext without the store snapshot, so state conditions do not affect live rendering until that wiring lands (called out in PR description).

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