feat(conditions): evaluate QUEST_ACTIVE and QUEST_COMPLETED

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

apps/api/src/conditions/game-condition.service.ts

@@ -4,6 +4,9 @@ import { Character } from '../characters/entities/character.entity';
 import { CharacterItem } from '../items/entities/character-item.entity';
 import { ItemDefinition } from '../items/entities/item-definition.entity';
 import { CharacterNpcState } from '../npcs/entities/character-npc-state.entity';
+import { CharacterQuest } from '../quests/entities/character-quest.entity';
+import { QuestDefinition } from '../quests/entities/quest-definition.entity';
+import { CharacterQuestStatus } from '../quests/quest.types';
 import { CharacterReputation } from '../reputation/entities/character-reputation.entity';
 import { ReputationFaction } from '../reputation/entities/reputation-faction.entity';
 import {
@@ -124,11 +127,63 @@ export class GameConditionService {
         return this.evaluateFlag(context, condition, scope);
       case GameConditionType.HAS_ITEM:
         return this.evaluateHasItem(context, condition, scope);
+      case GameConditionType.QUEST_ACTIVE:
+        return this.evaluateQuestStatus(
+          context,
+          condition,
+          scope,
+          CharacterQuestStatus.ACTIVE,
+        );
+      case GameConditionType.QUEST_COMPLETED:
+        return this.evaluateQuestStatus(
+          context,
+          condition,
+          scope,
+          CharacterQuestStatus.COMPLETED,
+        );
       default:
         return { met: false, actual: null };
     }
   }
 
+  /**
+   * Whether the character stands in a given place with a given quest (§19).
+   *
+   * Boolean-shaped like `FLAG_SET` rather than numeric: a quest is active or it
+   * is not, so `actual` stays null -- reporting "Current: 0" for it would be a
+   * lie about a boolean, and the shop view renders these outcomes as
+   * player-facing requirements.
+   *
+   * `value: false` is how content asks for the negative. The warden's offer
+   * line needs "not active and not completed", and this keeps that expressible
+   * without adding a NOT to the condition vocabulary.
+   */
+  private async evaluateQuestStatus(
+    context: ConditionContext,
+    condition: GameCondition,
+    scope: RepositoryScope,
+    status: CharacterQuestStatus,
+  ): Promise<ConditionEvaluation> {
+    if (!condition.key) {
+      return { met: false, actual: null };
+    }
+
+    const quest = await scope
+      .getRepository(QuestDefinition)
+      .findOneBy({ key: condition.key, enabled: true });
+    if (!quest) {
+      return { met: false, actual: null };
+    }
+
+    const row = await scope.getRepository(CharacterQuest).findOneBy({
+      characterId: context.characterId,
+      questId: quest.id,
+    });
+
+    const expected = condition.value ?? true;
+    return { met: (row?.status === status) === expected, actual: null };
+  }
+
   private async evaluateRegionReputation(
     context: ConditionContext,
     condition: GameCondition,