Follow-up on the salvaged #69915 commits:
- verified env vars against block/buzz crates/buzz-acp/src/config.rs
(BUZZ_RELAY_URL, BUZZ_PRIVATE_KEY, BUZZ_API_TOKEN, BUZZ_ACP_AGENT_COMMAND/
ARGS, BUZZ_ACP_RELAY_OBSERVER, BUZZ_ACP_AGENT_OWNER) and kind 24200
observer frames against docs/nips/NIP-AO.md
- dropped unverifiable claims: docs/hermes-agent-acp.md link (404 upstream),
relay-directory profile publication / External-agents card walkthrough,
'bot role' membership phrasing
- replaced key provisioning with the actual buzz-admin generate-key /
add-member flow from the buzz-acp README
- retitled the section 'Buzz channels (relay bridge)' and cross-linked it
with the Buzz Desktop managed-runtime section both ways; permission
paragraph now points at the owner-only warning instead of duplicating it
- zh-Hans translation of the new section + retitle to ACP 宿主集成
