In-memory revisioned Tasks store intended for examples and tests.

The required :scope option derives an authorization scope from each request context (see Snodo.Extensions.Tasks.Store.scope_option/2). Scope mismatches deliberately return :not_found, so task existence is not disclosed across callers.

This adapter implements the complete durable-store contract, including descriptors, fenced renewable claims, store-clock retry eligibility, recovery scans, and creation-based TTL reaping. Its records themselves remain volatile.

create/4 refuses a task with {:error, {:capacity_exceeded, limit}} when the store already holds :max_tasks tasks (default 10,000) or the caller's scope already has :max_active_tasks_per_scope working or input-required tasks (default 100). Either may be :infinity. Both counts come from the stored tasks, and an expired task counts until it is reaped.