feat: 카드 결제 알림 자동인식(미확인 내역) 백엔드

- account_entry pending/notif_key 컬럼 추가(멱등 마이그레이션)
- CardNotificationParser: 카드사·금액·가맹점·승인/취소 파싱
- POST /entries/notification(미확인 지출 생성, 중복방지, 카드 자동매칭)
- POST /entries/{id}/confirm(확정), GET /entries/pending/count

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

src/main/resources/mapper/AccountEntryMapper.xml

@@ -16,6 +16,8 @@
         <result property="toWalletId" column="to_wallet_id"/>
         <result property="toWalletName" column="to_wallet_name"/>
         <result property="installmentMonths" column="installment_months"/>
+        <result property="pending" column="pending"/>
+        <result property="notifKey" column="notif_key"/>
         <result property="createdAt" column="created_at"/>
         <result property="updatedAt" column="updated_at"/>
     </resultMap>
@@ -29,7 +31,7 @@
         e.id, e.member_id, e.entry_date, e.type, e.category, e.amount, e.memo,
         e.wallet_id, w.name AS wallet_name,
         e.to_wallet_id, tw.name AS to_wallet_name,
-        e.installment_months,
+        e.installment_months, e.pending, e.notif_key,
         e.created_at, e.updated_at
     </sql>
     <sql id="entryJoins">
@@ -127,9 +129,11 @@
     <insert id="insert" parameterType="com.sb.web.account.domain.AccountEntry"
             useGeneratedKeys="true" keyProperty="id">
         INSERT INTO account_entry (member_id, entry_date, type, category, amount, memo,
-                                   wallet_id, to_wallet_id, installment_months, created_at, updated_at)
+                                   wallet_id, to_wallet_id, installment_months, pending, notif_key,
+                                   created_at, updated_at)
         VALUES (#{memberId}, #{entryDate}, #{type}, #{category}, #{amount}, #{memo},
-                #{walletId}, #{toWalletId}, #{installmentMonths}, NOW(), NOW())
+                #{walletId}, #{toWalletId}, #{installmentMonths},
+                COALESCE(#{pending}, 0), #{notifKey}, NOW(), NOW())
     </insert>
 
     <update id="update" parameterType="com.sb.web.account.domain.AccountEntry">
@@ -144,6 +148,27 @@
         DELETE FROM account_entry WHERE id = #{id} AND member_id = #{memberId}
     </delete>
 
+    <!-- ===== 알림 자동인식(미확인) ===== -->
+    <select id="findByMemberAndNotifKey" resultMap="entryResultMap">
+        SELECT <include refid="entryCols"/>
+        <include refid="entryJoins"/>
+        WHERE e.member_id = #{memberId} AND e.notif_key = #{notifKey}
+        LIMIT 1
+    </select>
+
+    <select id="countPending" resultType="int">
+        SELECT COUNT(*) FROM account_entry WHERE member_id = #{memberId} AND pending = 1
+    </select>
+
+    <update id="confirm">
+        UPDATE account_entry
+        SET pending = 0,
+            <if test="category != null">category = #{category},</if>
+            <if test="walletId != null">wallet_id = #{walletId},</if>
+            updated_at = NOW()
+        WHERE id = #{id} AND member_id = #{memberId} AND pending = 1
+    </update>
+
     <select id="findDistinctCategories" resultType="string">
         SELECT DISTINCT category FROM account_entry
         WHERE member_id = #{memberId} AND type = #{type}