Unholy Death Knight Target Helper

## [1.1.2] - 2026-06-03

### Added

- **Army cast fallback for FK detection** — Added `ARMY_OF_THE_DEAD_ID` and a taint-safe fallback window (`FK_CAST_FALLBACK_SECONDS`) triggered by `UNIT_SPELLCAST_SUCCEEDED` for player Army casts. This keeps Forbidden Knowledge logic stable if aura lookups are delayed or inconsistent during combat.

- **Debug visibility for fallback state** — `/aoedk debug` now prints remaining FK cast fallback time (`FK cast fallback (s)`) to simplify live troubleshooting.

### Fixed

- **Combat taint while scanning aura data** — Removed secret-value-prone comparisons against `aura.spellId` in FK detection paths. FK state now relies on safe direct aura lookup plus cast-evidence fallback.

- **FK threshold window desync in combat** — Improved resilience so FK burst thresholds continue to apply reliably during Army windows even when aura propagation is transient.

### Tests

- Added coverage for `ARMY_OF_THE_DEAD_ID` presence in config defaults.

- Added FK fallback tests for Army cast success and non-Army negative case.