Potential experiments

fix(voice): random fixes and fixes for unnecessary app repaints

fix(gateway): reload the source after an exposed cutover abort

fix(gateway): keep a handoff on its target once the stop is sent

fix(composer): saved hight fixes

fix(gateway): wait for a calm source before arming guild pins

perf(gateway): fetch cached presences from owners in parallel

fix(gateway): refuse guild cutovers once the pin keeper armed

fix(gateway): reload pinned guilds right before arming the pins

fix(gateway): accept pin-aware routers and skip blocked peers

fix(gateway): unpin and verify every peer on guild pin release

fix(gateway): keep a handoff going once its backlog is forwarded

perf(gateway): filter handoff backlog captures on the source

fix(gateway): restore routes when a handoff controller dies

fix(gateway): keep pending sessions out of the viewable cache

fix(gateway): never forward batched connect results in handoff

fix(gateway): keep the channel index in slim handoff exports

fix(gateway): freeze guilds in handoff and forward their backlog

fix(gateway): hand off guilds to the owner the router resolves

feat(gateway): add a controller to move one guild between nodes

feat(users): add temporary new conversation limits (#3100)