BindAlias

Changed

• MCP: deep state diff — state diffs now use recursive JSON comparison so only changed sub-fields are emitted (e.g. {"pos":{"yaw":45}} instead of the entire pos object). Arrays are diffed as a whole.
• MCP: verbose and channels scoped to last deferredTick — in multi-snap calls, verbose only applies to the last deferredTick envelope; message channels (chat, mod, sound, unlocked_recipe) only appear in the last envelope since entries carry tick-index info internally.