Issue: Core UI/UX Enhancements

Problem
1. Drops users directly into the terminal with no introduction.
2. Lacks onboarding, feature discovery, and user guidance.
3. Feels incomplete and lacks professional credibility.

Proposed Solution
1. Landing Page:
* Headline and a short value proposition.
* A prominent "Launch Terminal" button.
* A GIF or video demo showing AI features.
2. Global Header & Footer:
* Header with logo, nav links (Tutorial, About), and a theme toggle.
* Footer with copyright, legal links (Privacy), and contact info.
3. Key Pages:
* A Tutorial page with step-by-step visual examples.
* An About page explaining the project's mission.
4. Terminal UI:
* On-screen buttons for key actions.
* Icons for Clear (🗑), Settings (⚙), and Help (❓).

Expected Outcome
1. Clearer, faster onboarding for new users.
2. Improved usability and navigation.
3. Increased professional polish and user trust.