Replace .ToArray() with collection spread, simplify single-statement
await using blocks, use Lock for Postgres schema gates, and document
IDE0063/IDE0305/IDE0330/CA1859 conventions in csharp-style.md.
Telegraph damage now looks up behavior attackAbilityId for baseDamage and
maxRange instead of using aggroRadius. Adds three NPC attack abilities, maxRange
on AbilityDef, attackAbilityId on NpcBehaviorDef, and cross-ref validation.