Mercantile - Villager Overhaul

A polish-focused beta that tightens up sentry golem behaviour and a few UI rough edges, plus a couple of small feature additions for players and modpack makers.

Added

• The mod now ships its own balance-scale icon, visible in your mod list and Mod Menu screen.
• The trade index is now synced to the client, so trade information is available without needing a round-trip to the server.
• Exclusive trades now support Fabric resource conditions — modpack authors can enable or disable specific trades based on which mods are installed.

Fixed

• Sentry golems now correctly target creepers.
• Sentry golems no longer detect threats through walls; line of sight is required to trigger a response.
• The villager info panel no longer shows a duplicate "Master" label at the master profession level.