auralis-task: Scoped async task runtime with explicit [TaskScope] hierarchy, iterative cancellation, and priority scheduling.

Architecture

• Global executor — a [thread_local!] singleton with high- and low-priority queues.
• TaskScope — owns spawned futures; dropping a scope cancels all descendant scopes and their tasks iteratively (no recursion), preventing stack overflows in deeply nested UI trees.
• set_deferred — safe signal mutation from [Drop] contexts.
• Pluggable storage — [ScopeStore] and [Executor::new_instance] enable multi-request isolation for SSR or multi-threaded runtimes.

Quick example

use auralis_task::{TaskScope, spawn_global};

let scope = TaskScope::new();
scope.spawn(async { /* ... */ });

Design decisions

The crate shares auralis_signal's single-threaded-by-default philosophy (Rc over Arc, RefCell over Mutex). For multi-threaded use-cases, create an isolated [Executor] instance per thread or per request. See the repository design docs for the full rationale.