feat(web): professionalize footer credit (DraftHQ + author + engine)

- Lead with "© 2026 DraftHQ" linked to the org; MIT License linked to the
  repo license; "Created & maintained by Mayur Pise" linked to LinkedIn
- Move the codebase-memory-mcp / DeusData engine attribution to a quieter
  second line (.footer-credit-sub)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: mayurpise

web/css/refresh-v4.css

@@ -214,3 +214,11 @@
     .tb-cell:nth-child(2n) { border-right: none; }
     .tb-cell { border-bottom: 1px solid var(--border); }
 }
+
+/* ---- Footer credit: professional, with a quiet engine line - */
+.footer-credit-sub {
+    margin-top: 0.4rem;
+    font-size: 0.8rem;
+    color: var(--text-muted);
+    opacity: 0.85;
+}

web/index.html

@@ -1480,7 +1480,8 @@ <h2>Frequently asked <span class="text-amber">questions</span></h2>
             </div>
         </div>
         <div class="footer-bottom">
-            <p>MIT License &middot; Made by <a href="https://www.linkedin.com/in/mayurpise/" target="_blank" rel="noopener noreferrer">Mayur Pise</a> &middot; Graph engine: <a href="https://github.com/DeusData/codebase-memory-mcp" target="_blank" rel="noopener noreferrer">codebase-memory-mcp</a> by <a href="https://github.com/DeusData" target="_blank" rel="noopener noreferrer">DeusData</a></p>
+            <p>&copy; 2026 <a href="https://github.com/drafthq" target="_blank" rel="noopener noreferrer">DraftHQ</a> &middot; Open source under the <a href="https://github.com/drafthq/draft/blob/main/LICENSE" target="_blank" rel="noopener noreferrer">MIT License</a> &middot; Created &amp; maintained by <a href="https://www.linkedin.com/in/mayurpise/" target="_blank" rel="noopener noreferrer">Mayur Pise</a></p>
+            <p class="footer-credit-sub">Graph engine: <a href="https://github.com/DeusData/codebase-memory-mcp" target="_blank" rel="noopener noreferrer">codebase-memory-mcp</a> by <a href="https://github.com/DeusData" target="_blank" rel="noopener noreferrer">DeusData</a></p>
         </div>
     </footer>