Feature: Cross-Mod Compatibility

[evanmiller2112]

Cross-Mod Compatibility

Support trading between modded versions of FlippyMon with different type systems and monsters.

Design Options for Unknown Types

• Option A: Include type definition in trade packet (name + matchups)
• Option B: Map unknown types to closest base type
• Option C: "Foreign" type that has neutral matchups against everything

Tasks

• Design protocol for trading with modded games that have different type systems
• Handle trading monsters with unknown species IDs
• Handle trading monsters with unknown moves
• Version negotiation during trade handshake
• Graceful fallback when mods are incompatible