Function reduce_state_actions 

pub fn reduce_state_actions(
    actions: Vec<AnyStateAction>,
    base_snapshot: &Value,
    default_source: &str,
    scope_ctx: &ScopeContext,
) -> TireaResult<Vec<TrackedPatch>>

Reduce a batch of state actions into tracked patches with rolling snapshot semantics.

Typed actions are reduced against a snapshot that is updated after each action, so sequential actions in one batch compose deterministically.

scope_ctx controls how ToolCall-scoped actions are routed to per-call namespaces. For Thread/Run phases (anything outside a tool-call), pass ScopeContext::run().