Block a user
feat(shard)!: Protocol 3.0 cutover — visibility framework, spawn atlas, marketplace
feat(sidecar)!: Protocol 3.0 cutover — X-UOLink-Version 2 → 3
feat(bridge)!: Protocol 3.0 cutover — world.ruleset, points.board, vendor.listing
docs(link): the Protocol 3.0 cutover (v3.md order 6)
feat(shard)!: declare wire protocol 3
feat(sidecar)!: bump PROTOCOL_VERSION to 3
docs(link): the player-vendor marketplace (Protocol 3.0 §8)
feat(shard): the player-vendor marketplace
feat(sidecar): store and serve the player-vendor market index
feat(bridge): publish the player-vendor market index as vendor.listing