Hostile Tactics v0.7.0: Warband

• Added local coordination between zombies, skeletons, and creepers.
• Mobs can now share short-lived combat signals using fair sight, last seen, and last heard information.
• Zombies apply front pressure, skeletons look for better crossfire angles, and creepers are more likely to seek side or rear approaches.
• Added Threat Dial scaling for Warband behavior.
• No damage, health, spawn, fuse speed, or explosion strength buffs.
• No wall tracking or global hive-mind behavior.
• Improved debug/status output for active Warband signals.