feat: update package dependencies and enhance routing for email verification and password recovery. Add nodemailer and related types for email handling, and implement new routes for verify-email and forgot-password in the application. Improve sign-in and sign-up forms to support email verification flow.

feat: enhance backend conventions for tRPC and Hono with new error handling, pagination, authorization, and logging guidelines. Introduce shared utilities for error management, ownership assertions, and visibility conditions. Update routers to utilize new pagination schema and improve error responses. Add comprehensive documentation in AGENTS.md for better developer onboarding.