test: 전투 차등 계측 범위를 엄격하게 보강한다

fixture 시각을 DB 변경 없이 고정하고 활성 스킬과 fixture identity를 노출해 Core의 전체 상태·RNG·로그 비교가 첫 차이에서 실패하도록 한다.

hwe/process_war.php

@@ -661,12 +661,14 @@ function buildWarTraceUnitSnapshot(WarUnit $unit): array
         'realPhase' => $unit->getRealPhase(),
         'maxPhase' => $unit->getMaxPhase(),
         'hp' => $unit->getHP(),
-        'rawWarPower' => $unit->getRawWarPower(),
+        // Ref leaves warPower uninitialized until beginPhase(). Canonical
+        // traces use numeric zero for that not-yet-computed state, as Core does.
+        'rawWarPower' => $unit->getRawWarPower() ?? 0,
         'warPower' => $unit->getWarPower(),
         'warPowerMultiplier' => $unit->getWarPowerMultiply(),
         'killed' => $unit->getKilled(),
         'dead' => $unit->getDead(),
-        'activatedSkills' => $unit->getActivatedSkillLog(),
+        'activatedSkills' => $unit->getActivatedSkillTraceSnapshot(),
     ];
 
     if ($unit instanceof WarUnitGeneral) {