v2026.5.4-beta.3

## 2026.5.4 ### Highlights - Google Meet/Voice Call: make Twilio dial-in joins speak through the realtime Gemini voice bridge with paced audio streaming, backpressure-aware buffering, barge-in queue clearing, and no TwiML fallback during realtime speech, giving Meet participants a much snappier OpenClaw voice agent. (#77064) Thanks @scoootscooob. ### Changes - Gateway/Windows: bind the default loopback gateway listener only to `127.0.0.1` on Windows so libuv's dual-stack `::1` behavior cannot wedge localhost HTTP requests. (#69701, fixes #69674) Thanks @SARAMALI15792. - Plugins/migration: emit catalog-backed install hints when `plugins.entries` or `plugins.allow` references an official external plugin that is not installed, so upgraded configs point operators to `openclaw plugins install <spec>` instead of telling them to remove valid plugin config. (#77483) Thanks @hclsys. - OpenAI/Codex media: advertise Codex audio transcription in runtime and manifest metadata and route active Codex chat models to the OpenAI transcription default instead of sending chat model ids to audio transcription. Thanks @vincentkoc. - Dependencies: refresh runtime and provider packages including Pi 0.73.0, ACPX adapters, OpenAI, Anthropic, Slack, and TypeScript native preview, while keeping the Bedrock runtime installer override pinned below the Windows ARM Node 24 npm resolver failure. - Agents/performance: pass the resolved workspace through BTW, compaction, embedded-run model generation, and PDF model setup so explicit agent-dir model refreshes can reuse the current workspace-scoped plugin metadata snapshot instead of falling back to cold plugin metadata scans. (#77519, #77532) - Plugins/performance: let unscoped model catalog and manifest-contract readers reuse the current workspace-compatible plugin metadata snapshot, avoiding repeated cold plugin metadata scans on hot control-plane paths while preserving env/config/workspace compatibility checks. (#77519, #77532) - Config/plugin