Add GitHub repository link to navigation

- Add GitHub icon link in navbar for all users
- Links to https://github.com/joshpollara/bridgeping
- Opens in new tab with Bootstrap Icons GitHub icon

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: joshpollara

webapp/templates/base.html

@@ -37,6 +37,11 @@
                         <li class="nav-item">
                             <a class="nav-link" href="/logout">Logout</a>
                         </li>
+                        <li class="nav-item">
+                            <a class="nav-link" href="https://github.com/joshpollara/bridgeping" target="_blank" title="View on GitHub">
+                                <i class="bi bi-github"></i>
+                            </a>
+                        </li>
                     </ul>
                 {% else %}
                     <ul class="navbar-nav me-auto">
@@ -50,6 +55,13 @@
                             <a class="nav-link" href="/faq">FAQ</a>
                         </li>
                     </ul>
+                    <ul class="navbar-nav ms-auto">
+                        <li class="nav-item">
+                            <a class="nav-link" href="https://github.com/joshpollara/bridgeping" target="_blank" title="View on GitHub">
+                                <i class="bi bi-github"></i>
+                            </a>
+                        </li>
+                    </ul>
                 {% endif %}
             </div>
         </div>