feat: 시세 자동조회·퇴직연금 평가액·게시판 카테고리·태그 정렬·계좌번호 암호화

- 투자: 종목코드로 현재가 시세 자동조회(StockQuoteService, 투자탭/포트폴리오 진입 시 갱신)
- 투자: 퇴직연금 등 평가액 직접입력형 계좌(currentValue 활성화, manualValuation)
- 게시판: community/saving/tips 카테고리 분리(post.category + 목록 필터)
- 태그: 순서 변경(account_tag.sort_order, /tags/reorder)
- 보안: 계좌번호 AES-256-GCM 암호화 저장/복호화(EncryptedStringTypeHandler, account_number VARCHAR(255))
  키는 서버 .env ACCOUNT_CRYPTO_KEY 로 주입(미설정 시 평문 통과)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/main/resources/mapper/WalletMapper.xml

@@ -9,7 +9,8 @@
         <result property="type" column="type"/>
         <result property="name" column="name"/>
         <result property="issuer" column="issuer"/>
-        <result property="accountNumber" column="account_number"/>
+        <result property="accountNumber" column="account_number"
+                typeHandler="com.sb.web.common.crypto.EncryptedStringTypeHandler"/>
         <result property="cardType" column="card_type"/>
         <result property="openingBalance" column="opening_balance"/>
         <result property="openingDate" column="opening_date"/>
@@ -37,14 +38,16 @@
             useGeneratedKeys="true" keyProperty="id">
         INSERT INTO wallet (member_id, type, name, issuer, account_number, card_type,
                             opening_balance, opening_date, current_value, sort_order, created_at, updated_at)
-        VALUES (#{memberId}, #{type}, #{name}, #{issuer}, #{accountNumber}, #{cardType},
+        VALUES (#{memberId}, #{type}, #{name}, #{issuer},
+                #{accountNumber, typeHandler=com.sb.web.common.crypto.EncryptedStringTypeHandler}, #{cardType},
                 #{openingBalance}, #{openingDate}, #{currentValue}, #{sortOrder}, NOW(), NOW())
     </insert>
 
     <update id="update" parameterType="com.sb.web.account.domain.Wallet">
         UPDATE wallet
         SET type = #{type}, name = #{name}, issuer = #{issuer},
-            account_number = #{accountNumber}, card_type = #{cardType},
+            account_number = #{accountNumber, typeHandler=com.sb.web.common.crypto.EncryptedStringTypeHandler},
+            card_type = #{cardType},
             opening_balance = #{openingBalance}, opening_date = #{openingDate},
             current_value = #{currentValue}
         WHERE id = #{id} AND member_id = #{memberId}