[TheGreatAxios]

Summary

• A hub restart releases every process-provisioned deployment, so a workbench room could end up with no live agent even though Participants still listed one. Room now renders an AgentRedeployer per released agent (asset present, no live run), which redeploys it through the same path workbench-create.ts uses: deployMyraSource for Myra, readAgentSource + deployAgentSource for anything else, then invalidates the room scope.
• Redeploy is triggered in the render path, guarded by a useRef plus the mutation's own isPending/isSuccess, one AgentRedeployer instance per released agent's asset id — no useEffect.
• The composer disables with "<name> is starting…" while any agent is released, matching chat-thread-page.tsx's pattern, and the participants query polls every 3s while an agent has no live address.
• Room message avatars now resolve through resolveParticipantName (participant display name, e.g. Myra → "M") instead of the raw run-address local part.
• RoomParticipant gained an optional assetName, needed to redeploy/read source back for a released agent.

Test plan

• bunx tsc -p apps/web --noEmit
• bun run fmt
• bun run lint
• cd apps/web && bun run build
• No new tests added (none existed for these files); bun test apps/web/src shows pre-existing document is not defined failures unrelated to this change (missing DOM env in the invocation used), none in the files touched here.

[linear-code]

CL-8454