Quoted CREATE SERVER PORT silently saturates on overflow

Description

`CREATE SERVER` applies inconsistent range validation to numeric and quoted `PORT` values. The numeric value `2147483648` is rejected as out of range, while the quoted value `'2147483648'` is accepted without a warning and stored in `mysql.servers.Port` as `2147483647`.

The behavior was reproduced twice. The quoted boundary value `'2147483647'` is the control and is preserved without loss.

How to Repeat

DROP SERVER IF EXISTS port_numeric;

DROP SERVER IF EXISTS port_quoted;

CREATE SERVER port_numeric

FOREIGN DATA WRAPPER mysql

OPTIONS (HOST '', PORT 2147483648);

CREATE SERVER port_quoted

FOREIGN DATA WRAPPER mysql

OPTIONS (HOST '', PORT '2147483648');

SHOW COUNT(*) WARNINGS;

SHOW WARNINGS;

SELECT Server_name, Port

FROM mysql.servers

WHERE Server_name IN ('port_numeric', 'port_quoted');

For the non-triggering control, repeat the quoted case with `PORT '2147483647'`.

Actual Result

The numeric form returns ERROR 1690: port value is out of range in 'INT'.

The quoted form succeeds, produces zero warnings, and stores 2147483647.

Expected Result

Numeric and quoted forms should receive equivalent range validation. `'2147483648'` should be rejected rather than silently changed to a different port.