Summary

Wire in the Preview 3 draft task and thread built-ins and adapt component instantiation/linking so async worlds can be instantiated and executed correctly.

Parent tracking issue: #70
Suggested implementation order: 5 / 14

References

• https://github.com/WebAssembly/WASI/blob/main/docs/Preview2.md
• https://github.com/WebAssembly/component-model/blob/2e4800866d529aedc1b7730bc9452a4f85b97d8f/design/mvp/WIT.md
• https://github.com/WebAssembly/component-model/blob/2e4800866d529aedc1b7730bc9452a4f85b97d8f/design/mvp/Linking.md
• https://github.com/WebAssembly/component-model/blob/2e4800866d529aedc1b7730bc9452a4f85b97d8f/design/mvp/Concurrency.md

Acceptance criteria

• Task/thread built-ins required by the draft concurrency model are exposed through the runtime execution context.
• Async component instantiation and world linking can connect imported async functions and resources without breaking existing component setup paths.
• Tests cover representative async world instantiation and task lifecycle behavior.