删除私信分支链路

src/Core/DBMigratorPart2.php

@@ -108,37 +108,6 @@ trait DBMigratorPart2 {
         ) {$charset_collate};";
         dbDelta($sql_notification);
 
-        // ---------- 6. 私信会话 ----------
-        $sql_conversation = "CREATE TABLE {$prefix}aksrt_conversation (
-            id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
-            user_a BIGINT UNSIGNED NOT NULL,
-            user_b BIGINT UNSIGNED NOT NULL,
-            last_message VARCHAR(255) DEFAULT '',
-            last_message_at DATETIME DEFAULT NULL,
-            unread_a INT NOT NULL DEFAULT 0,
-            unread_b INT NOT NULL DEFAULT 0,
-            created_at DATETIME NOT NULL,
-            PRIMARY KEY  (id),
-            UNIQUE KEY uniq_pair (user_a, user_b),
-            KEY idx_user_a (user_a),
-            KEY idx_user_b (user_b),
-            KEY idx_last_msg (last_message_at)
-        ) {$charset_collate};";
-        dbDelta($sql_conversation);
-
-        // ---------- 7. 私信消息 ----------
-        $sql_conv_message = "CREATE TABLE {$prefix}aksrt_conversation_message (
-            id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
-            conversation_id BIGINT UNSIGNED NOT NULL,
-            sender_id BIGINT UNSIGNED NOT NULL,
-            content TEXT NOT NULL,
-            created_at DATETIME NOT NULL,
-            PRIMARY KEY  (id),
-            KEY idx_conv_time (conversation_id, created_at),
-            KEY idx_sender (sender_id)
-        ) {$charset_collate};";
-        dbDelta($sql_conv_message);
-
         // ---------- 8. 订单表 ----------
         $sql_order = "CREATE TABLE {$prefix}aksrt_order (
             id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,