feat(ai-character): 캐릭터 관리자 API를 추가한다

src/main/kotlin/kr/co/vividnext/sodalive/chat/character/repository/ChatCharacterRepository.kt

@@ -1,8 +1,11 @@
 package kr.co.vividnext.sodalive.chat.character.repository
 
 import kr.co.vividnext.sodalive.chat.character.ChatCharacter
+import kr.co.vividnext.sodalive.member.MemberKind
+import kr.co.vividnext.sodalive.member.MemberRole
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
+import org.springframework.data.jpa.repository.EntityGraph
 import org.springframework.data.jpa.repository.JpaRepository
 import org.springframework.data.jpa.repository.Query
 import org.springframework.data.repository.query.Param
@@ -53,6 +56,48 @@ interface ChatCharacterRepository : JpaRepository<ChatCharacter, Long> {
         pageable: Pageable
     ): Page<ChatCharacter>
 
+    @EntityGraph(attributePaths = ["creatorMember", "originalWork"])
+    @Query(
+        value = """
+        SELECT DISTINCT c FROM ChatCharacter c
+        JOIN c.creatorMember cm
+        LEFT JOIN c.tagMappings tm
+        LEFT JOIN tm.tag t
+        WHERE c.isActive = true
+          AND cm.role = :role
+          AND cm.memberKind = :memberKind
+          AND (
+            :searchTerm = '' OR
+            LOWER(c.name) LIKE LOWER(CONCAT('%', :searchTerm, '%')) OR
+            LOWER(c.description) LIKE LOWER(CONCAT('%', :searchTerm, '%')) OR
+            (c.mbti IS NOT NULL AND LOWER(c.mbti) LIKE LOWER(CONCAT('%', :searchTerm, '%'))) OR
+            (t.tag IS NOT NULL AND LOWER(t.tag) LIKE LOWER(CONCAT('%', :searchTerm, '%')))
+          )
+        """,
+        countQuery = """
+        SELECT COUNT(DISTINCT c) FROM ChatCharacter c
+        JOIN c.creatorMember cm
+        LEFT JOIN c.tagMappings tm
+        LEFT JOIN tm.tag t
+        WHERE c.isActive = true
+          AND cm.role = :role
+          AND cm.memberKind = :memberKind
+          AND (
+            :searchTerm = '' OR
+            LOWER(c.name) LIKE LOWER(CONCAT('%', :searchTerm, '%')) OR
+            LOWER(c.description) LIKE LOWER(CONCAT('%', :searchTerm, '%')) OR
+            (c.mbti IS NOT NULL AND LOWER(c.mbti) LIKE LOWER(CONCAT('%', :searchTerm, '%'))) OR
+            (t.tag IS NOT NULL AND LOWER(t.tag) LIKE LOWER(CONCAT('%', :searchTerm, '%')))
+          )
+        """
+    )
+    fun searchAiCharacters(
+        @Param("searchTerm") searchTerm: String,
+        @Param("role") role: MemberRole,
+        @Param("memberKind") memberKind: MemberKind,
+        pageable: Pageable
+    ): Page<ChatCharacter>
+
     /**
      * 특정 캐릭터와 태그를 공유하는 다른 캐릭터를 무작위로 조회 (현재 캐릭터 제외)
      */