feat(acp): cut over OpenClaw to a long-lived adapter

[onutc]

Summary

• replace the per-connection OpenClaw ACP bridge with one long-lived ACP adapter on port 2529
• switch the operator from ACP websocket probing to cheap HTTP health and metadata discovery
• remove the old Go bridge runtime and update docs, Helm, and CRDs for the cutover

Validation

• node --check images/examples/openclaw/acp-server.mjs
• node --check images/examples/openclaw/acp-wrapper.mjs
• node --test images/examples/openclaw/acp-server.test.mjs images/examples/openclaw/acp-wrapper.test.mjs images/examples/openclaw/image-contract.test.mjs
• bash images/examples/openclaw/entrypoint_test.sh
• go test ./... (operator)
• go test ./... (api)
• ./scripts/sync-crd.sh --check
• ./scripts/verify-helm.sh
• npx -y @simpledoc/simpledoc check
• git diff --check