[Browser ext.] Add type validation to API responses

[spalmurray-codecov]

Use zod or similar to validate the API response types. Stop throwing any around 😭

[erify-world]

Founder of ERIFY™ — building a global ecosystem merging fintech, AI, and luxury digital experiences. Creator of ERIVOX AI and the GERIZON legacy crown system. 🌍💎🔥”