//! Core runtime management for User-Space Capsules in Astrid OS.
//!
//! This crate succeeds `astrid-plugins` and implements the Phase 4
//! "Manifest-First" architecture. It provides the definition for `Capsule.toml`
//! manifests, handles discovery, and routes execution to the appropriate
//! environments (WASM sandboxes, legacy host processes, or OpenClaw bridges).