Update 2.51

v2.51.0BETASeymour

Custom Boss Creator: `AI used` is now an explicit AI Source picker

• The Custom Boss Creator tab no longer hides AI as an implicit inheritance detail: it now has an AI used card with Inherit source AI or Copy AI from another m###, its own filter, source list, and a technical summary (AiFile, workers, instructions, structural validation). When creating a boss, the clone can receive the whole AiFile from another monster, validated by the ATEL codec/validator before writing; stats, name, and ModelId stay in the existing flow. The base monster filter, previously a UI field without behaviour, now actually filters. Honesty: this copies whole AI profiles; mixing workers/snippets, loot/rewards, and phases remain later cuts. Editor builds 0 errors / 357 baseline warnings

v2.50.1