Unholy Death Knight Target Helper

## [1.0.2] - 2026-03-14

### Changed

- **Enemy Detection System (rewritten)**

  - Replaced `for i = 1, 40` nameplate loop with an event-driven system (`NAME_PLATE_UNIT_ADDED/REMOVED`)

  - Only active nameplates are stored at any given time, removing unnecessary iterations

  - Current target is always counted even without a visible nameplate

  - Added `UNIT_FLAGS` handler to drop mobs that turn friendly (e.g. Mind Control)

  - Registered `PLAYER_TARGET_CHANGED` to update the icon immediately on target switch

  - Real mode: fixed threat check to `~= nil` (previously `>= 0` caused taint)