Adjust security alert position to align with Analysis Results card

Implement registration role request, register link in login form, and background email alerts to sales@freshbeats.ai on login/registration

Enhance landing page biometric scanning HUD with corner brackets, glowing target circle, and real-time scanning parameters

Fix landing page redirect latency by using lightweight animated CSS background on HF spaces, and remove invalid nested button markup

Initial clean commit of modular MorphGuard