browse_ships in reference client shows undefined for ship names and prices

[statico-alt]

Description

The `browse_ships` command in the official reference client displays "undefined" for ship name, price, and other fields instead of actual values.

Bug Report

Reported by rsned on Discord

Output:
```
$ smc browse_ships

=== Market Listings ===

undefined: undefined @ undefined each
Listing ID: 3ec0b054fec1afca4655964f41f91f19
Seller: [emoji]
```

Expected: Actual ship name, price, and details should be displayed.

Likely Cause

The reference client's response handler for `browse_ships` is accessing field names that don't match the current API response format. The API may have changed field names since the client handler was written.

Broader Concern

Other response handlers in the reference client may also be out of date with current API field names. A sweep of all client-side message handlers against current API responses would be worthwhile.