Castle Siege mini-map and guild commands

During the battle (Start state), the guild master of each participating alliance's master guild receives mini-map updates every three seconds while on the Castle Siege map. Ordinary guild members and masters of allied member guilds do not receive these tactical snapshots.

Updates show up to 1,000 players on the commander's own siege side, including allied guilds, together with living castle gates and Guardian Statues. Players on other maps and opposing sides are excluded. Updates stop when the battle ends or the commander leaves the siege map.

The server pushes these updates automatically. The existing client protocol has no mini-map subscription request or acknowledgment, so opening the UI does not require a new request packet.

An alliance master can select one of seven command groups and place an attack, defend, or wait order at a target coordinate. The server relays the selected group and command to players on the same siege side and map, including the commander. The group selects a numbered marker slot; it does not select a siege side. Attempts are limited to one per second per player, including unauthorized attempts, to keep repeated requests from flooding the siege's shared lock and other players' connections.

The client must support the Castle Siege commander interface and the player position (B6), NPC position (BB), and guild command (B2:1D) packets. Within each update, the player packet replaces the position layer and the NPC packet adds structures afterward. The commander position is already known locally; the existing position packet has no separate commander-identity field.