Mutable static state

A gameplay module stores mutable state in a static field or auto-property. Statics are outside ECS save, replay and replication, and their lifetime does not follow gameplay state. The edit is rejected; the last good code keeps running.

#Common causes

• A non-constant static field is not readonly.
• A static auto-property has a setter.

#Fixes

• Move authoritative shared state into a [Resource] struct, or per-entity state into a [Component] struct.

• Use const or static readonly only for genuinely immutable data; a readonly reference to mutable gameplay data does not make that state safe.

• Code: ARA0100

• Constant: cs::MUTABLE_STATIC

• Reported by: Ara.Analyzers