Moved profile about sections into their own table.

database/2025_02_08_225249_moved_profile_about_to_dedicated_table.php

@@ -0,0 +1,36 @@
+<?php
+use Index\Db\DbConnection;
+use Index\Db\Migration\DbMigration;
+
+final class MovedProfileAboutToDedicatedTable_20250208_225249 implements DbMigration {
+    public function migrate(DbConnection $conn): void {
+        $conn->execute(<<<SQL
+            CREATE TABLE msz_profile_about (
+                user_id           INT UNSIGNED       NOT NULL,
+                about_body        TEXT               NOT NULL COLLATE 'utf8mb4_unicode_520_ci',
+                about_body_format ENUM('','bb','md') NOT NULL COLLATE 'ascii_general_ci',
+                about_created     TIMESTAMP          NOT NULL DEFAULT NOW(),
+                PRIMARY KEY (user_id),
+                CONSTRAINT profile_about_users_foreign
+                    FOREIGN KEY (user_id)
+                    REFERENCES msz_users (user_id)
+                    ON UPDATE CASCADE
+                    ON DELETE CASCADE
+            ) COLLATE='utf8mb4_bin';
+        SQL);
+
+        $conn->execute(<<<SQL
+            INSERT INTO msz_profile_about
+            SELECT user_id, user_about_content, user_about_content_format, NOW()
+            FROM msz_users
+            WHERE user_about_content IS NOT NULL
+            AND TRIM(user_about_content) <> ''
+        SQL);
+
+        $conn->execute(<<<SQL
+            ALTER TABLE msz_users
+                DROP COLUMN user_about_content,
+                DROP COLUMN user_about_content_format;
+        SQL);
+    }
+}