docs: update documentation links to use relative paths and add system flow references

- Replace absolute aitbc.bubuit.net URLs with relative paths in documentation pages
- Update markdown documentation links from /main/ to /master/ branch
- Add system flow diagram references to component documentation pages
- Remove redundant "Also available in Markdown" notices from HTML docs
- Update Font Awesome CDN link in index.html
- Simplify quick links section and remove unused tutorial/video guide plac

website/docs/full-documentation.html

@@ -471,10 +471,6 @@
     <main>
         <div class="container">
             <div class="doc-header">
-                <div class="alert alert-info" style="background: #dbeafe; border-color: #3b82f6; color: #1e40af; margin-bottom: 2rem; padding: 1rem; border-radius: 8px;">
-                    <strong>📚 Also available in Markdown:</strong> 
-                    <a href="https://gitea.bubuit.net/oib/aitbc/src/branch/main/docs/full-documentation.md" target="_blank" style="color: #1e40af; text-decoration: underline;">View this documentation in markdown format</a> for easier contribution and version control.
-                </div>
                 
                 <h1>AITBC Full Documentation</h1>
                 <p>Complete technical documentation for the AI Training & Blockchain Computing platform</p>