v2026.5.4-beta.1

## 2026.5.4 ### Highlights - Plugins/file-transfer: add bundled file-transfer plugin with `file_fetch`, `dir_list`, `dir_fetch`, and `file_write` agent tools for binary file ops on paired nodes; default-deny per-node path policy under `plugins.entries.file-transfer.config.nodes` with operator approval, symlink traversal refused by default (opt-in `followSymlinks`), and a 16 MB byte ceiling per round-trip. (#74742) Thanks @omarshahine. - 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 - Control UI/header: show the active agent name in dashboard breadcrumbs without adding the current session key, keeping non-chat views oriented without crowding the topbar. - Control UI/cron: make the New Job sidebar collapsible so the jobs list can reclaim space while keeping the form one click away. Thanks @BunsDev. - Gateway/startup: keep model-catalog test helpers, run-session lookup code, QR pairing helpers, and TypeBox memory-tool schema construction out of hot startup import paths, reducing default gateway benchmark plugin-load and memory pressure. - Control UI/performance: record browser long animation frame or long task entries in the debug event log when supported, making slow dashboard renders easier to attribute from the UI. - Channels/streaming: add unified `streaming.mode: "progress"` drafts with auto single-word status labels and shared progress configuration across Discord, Telegram, Matrix, Slack, and Microsoft Teams. - Slack/streaming: add `streaming.progress.render: "rich"` for Block Kit progress drafts backed by structured progress line data. - Slack/streaming: keep the newest rich progress lines when Block Kit limits trim long progress drafts. Thanks @vincentkoc. - Channels/streamin