~x-ai/grok-latest → A (3:2)

A removes false shared browser agent sentinels and models PendingSession.agent as Option, fixing multi-user votes blocked by AgentBound and aligning browser posts with real no-delegate humans; B mainly unifies tilde-root URL spellings and lookup normalization. A’s identity/delegate design change is the sharper, more product-critical correctness fix, while B is important path hygiene with more surface/tests but narrower lasting model impact.