Cloudflare Agents SDK adds durable aborts

Bringing durable aborts and replays directly into the connector runtime moves agent code execution from brittle, fire-and-forget scripts to highly resilient, enterprise-ready stateful workflows.

* Codemode shifts agents from sequential JSON tool calls to dynamically writing and executing code, reducing token consumption and context window bloat.

* Utilizing Cloudflare's native Durable Objects architecture, the new model allows agents to checkpoint state, pause/hibernate, and replay steps without repeating expensive external API actions.

* The introduction of durable aborts helps avoid side-effect duplication, providing developers with clear transaction boundaries when retrying aborted operations.