* [refac] Remove explicit charset and collation declarations from SQL files

- Remove DEFAULT CHARSET declarations from all SQL table definitions
- Strip COLLATE clauses from field definitions across all database scripts
- Simplify ENGINE declarations by removing redundant charset specifications
- Standardize SQL statement formatting for improved database compatibility
- Affects all database update scripts from version 0.1 to 21.7.6

db/update10.3.1.sql

@@ -3,7 +3,7 @@ CREATE TABLE IF NOT EXISTS `zt_userview` (
   `products` text NOT NULL,
   `projects` text NOT NULL,
   UNIQUE KEY `account` (`account`)
-) ENGINE=MyISAM DEFAULT CHARSET=utf8;
+) ENGINE=MyISAM;
 
 ALTER TABLE `zt_entry` ADD `account` VARCHAR(30) NOT NULL DEFAULT '' AFTER `code`;
 UPDATE `zt_doc` set editedDate=addedDate, editedBy=addedBy where editedBy = '';