Changelog

2026-07-10

established the formal docs.zhenrobot.com/protocols/c2ai2x/ docs tree
froze the public boundary:
- protocol standard source of truth: zhen-protocol-c2ai2x
- public runtime ingress: zhen-platform-core
- execution runtime: zhen-brain-core
- vertical samples: business frontend repositories
added the phase 1 public integration pages:
- first-request
- execution-lifecycle
- error-model
- production-readiness
- trust-boundary
- examples
updated the reading order and quickstart path for the expanded public docs set