Remove GitHub Pages configuration for dedicated server migration

[Copilot]

The domain gratech.sa was pointing to GitHub Pages showing stale content instead of the new GraTech AI Platform on the dedicated server.

Changes

• Added .nojekyll file to prevent Jekyll processing
• Updated README.md Live Demo section to reference gratech.sa and note dedicated server hosting

Not needed

• CNAME file deletion — file does not exist
• GitHub Pages workflow removal — .github directory does not exist

After merge, DNS for gratech.sa can be pointed to the dedicated server.

Original prompt

Problem

The domain gratech.sa is currently pointing to GitHub Pages and showing the old "Comet Backbone Dashboard" instead of the new GraTech AI Platform running on the server at 172.201.26.111.

Required Changes

1. Delete CNAME file (if exists) - This file binds the custom domain to GitHub Pages
2. Update or remove GitHub Pages configuration - Disable the automatic deployment to GitHub Pages
3. Add a .nojekyll file - Prevent Jekyll processing if any static files remain
4. Update README.md - Add note that the platform is now hosted on the dedicated server

Expected Outcome

After these changes:

• GitHub Pages will no longer serve content for gratech.sa
• The domain DNS can be pointed directly to the server 172.201.26.111
• The new professional GraTech AI Platform will be accessible at gratech.sa

Technical Context

• Current server IP: 172.201.26.111
• Old Azure App Service IP: 20.105.216.51 (should no longer be used)
• The repository contains a TypeScript/React dashboard that was being served via GitHub Pages
• The new platform runs on the dedicated server with Node.js backend + Nginx

This pull request was created as a result of the following prompt from Copilot chat.

Problem

The domain gratech.sa is currently pointing to GitHub Pages and showing the old "Comet Backbone Dashboard" instead of the new GraTech AI Platform running on the server at 172.201.26.111.

Required Changes

1. Delete CNAME file (if exists) - This file binds the custom domain to GitHub Pages
2. Update or remove GitHub Pages configuration - Disable the automatic deployment to GitHub Pages
3. Add a .nojekyll file - Prevent Jekyll processing if any static files remain
4. Update README.md - Add note that the platform is now hosted on the dedicated server

Expected Outcome

After these changes:

• GitHub Pages will no longer serve content for gratech.sa
• The domain DNS can be pointed directly to the server 172.201.26.111
• The new professional GraTech AI Platform will be accessible at gratech.sa

Technical Context

• Current server IP: 172.201.26.111
• Old Azure App Service IP: 20.105.216.51 (should no longer be used)
• The repository contains a TypeScript/React dashboard that was being served via GitHub Pages
• The new platform runs on the dedicated server with Node.js backend + Nginx

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