Landing page init

term to kill, and startup fix,

Fix 500: add missing avatar columns via startup migration

Fix cross-origin session cookies for iframe

progress and cancel

phase 3 ig

Refactor email content generation and update email sending logic

feat: add report deletion functionality and improve Grad-CAM URL handling with path fallback support

refactor: migrate to modular architecture, add system documentation, and enhance batch processing stability

feat: implement complete password recovery flow with OTP verification and transactional email templates.

feat: implement robust security middleware, authentication system, and frontend UI components