Verify combat AI and faction hostility in-game

[voitsekhovskymax]

Phases 8, 10 and 12 shipped unverified. Confirm the AI tasks actually run.

• Spawn a mordor-orc near a survival player: does lotr:horderaid engage?
• Do orcs rally allies rather than clumping on one target?
• Set Shire alignment negative and confirm Shire NPCs turn hostile
• Confirm a disguise suppresses aggro
• Confirm creative-mode players are never targeted
• Check the server log for AI task registration warnings

If a task never fires, check the code matches a registered id in LotrModSystem.Start.