Simplify code by calling parent::run_query directly and remove test-output.txt

Co-authored-by: swissspidy <841956+swissspidy@users.noreply.github.com>

Author: Copilot

src/DB_Users_Command.php

@@ -76,37 +76,24 @@ public function create( $args, $assoc_args ) {
 		}
 		$create_query .= ';';
 
-		$this->run_user_query( $create_query, $assoc_args );
+		parent::run_query( $create_query, $assoc_args );
 
 		// Grant privileges if requested
 		if ( $grant_privileges ) {
 			$database         = DB_NAME;
 			$database_escaped = $this->esc_sql_ident( $database );
 			$grant_query      = "GRANT ALL PRIVILEGES ON {$database_escaped}.* TO {$user_identifier};";
-			$this->run_user_query( $grant_query, $assoc_args );
+			parent::run_query( $grant_query, $assoc_args );
 
 			// Flush privileges
-			$this->run_user_query( 'FLUSH PRIVILEGES;', $assoc_args );
+			parent::run_query( 'FLUSH PRIVILEGES;', $assoc_args );
 
 			WP_CLI::success( "Database user '{$username}'@'{$host}' created with privileges on database '{$database}'." );
 		} else {
 			WP_CLI::success( "Database user '{$username}'@'{$host}' created." );
 		}
 	}
 
-	/**
-	 * Run a single query via the 'mysql' binary.
-	 *
-	 * This method adds SQL mode compatibility and delegates to the parent class.
-	 *
-	 * @param string $query      Query to execute.
-	 * @param array  $assoc_args Optional. Associative array of arguments.
-	 */
-	private function run_user_query( $query, $assoc_args = [] ) {
-		// Use parent class's run_query method which handles SQL mode compatibility.
-		parent::run_query( $query, $assoc_args );
-	}
-
 	/**
 	 * Escapes a string for use in a SQL query.
 	 *
@@ -123,6 +110,9 @@ private function esc_sql_string( $value ) {
 	/**
 	 * Escapes (backticks) MySQL identifiers (aka schema object names).
 	 *
+	 * Note: This duplicates functionality from parent DB_Command::esc_sql_ident()
+	 * which is private static and cannot be accessed from child classes.
+	 *
 	 * @param string $ident A single identifier.
 	 * @return string An escaped string.
 	 */