## Summary
- Adds `public virtual bool Murderer => Kills >= 5` property to `Mobile`, replacing ~30 scattered `Kills >= 5` / `Kills < 5` magic-number checks across the codebase
- `BaseCreature` overrides `Murderer` to also return `true` when `AlwaysMurderer` is set
- Updates `Corpse` serialization to v15, storing `_murderer` as a `bool` field (migrated from `int Kills >= 5` in earlier versions)
> [!Important]
> **Developer Note**
> This code change will **completely move gumps out of the core**
### Summary
- Adds `GetGumps()` convenience which exposes methods to Find/Close/Send multiple gumps. This helper is a performance improvement by eliminating the Dictionary<Player, List> lookup for gumps.
### Summary
- Adds KR/EC client versions to ClientVersion
- Adds distinction for enhanced versions in the page queue
- Adds KR Expansion flags
- Adds ProtocolChange enum support
- Adds missing Moongate checks for TerMur
- Adds better message for why a client version is not supported, and which ones are supported.
- [X] Changes effect packets
- [X] Updates playing sounds
- [X] Updates Effects class to have more options so there are less direct calls to building the packets
- [X] Changes bonding status packet
