🧪 Verifier: Add tests for discordAdapters

[google-labs-jules]

🎯 Goal: Covered the discordAdapters.ts file which contains the critical logic for converting raw Discord.js objects into internal handler shapes.
🧪 Test Strategy: Used Vitest and vi.fn() to mock out the Discord API and Collection structures, ensuring no live connections are made.
🛡️ Safety: All existing tests, linting, and typechecks pass (./scripts/verify-ts.sh).

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PR created automatically by Jules for task 16697799601389280185 started by @TytaniumDev

[google-labs-jules]

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