Add running route planner with quality comparison and GPX export

app/templates/base.html

@@ -14,6 +14,7 @@
     <a class="brand" href="{{ url_for('web.dashboard') }}"><span class="brand-mark">s</span>stride<span class="brand-dot">.</span></a>
     <nav class="header-nav" aria-label="Main navigation"><a class="{{ 'active' if request.endpoint == 'web.dashboard' }}" href="{{ url_for('web.dashboard') }}">Dashboard</a><a class="{{ 'active' if request.endpoint in ('web.friends', 'web.profile') }}" href="{{ url_for('web.friends') }}">Friends</a></nav>
     <a class="stats-nav {{ 'active' if request.endpoint == 'web.stats' }}" href="{{ url_for('web.stats') }}">Stats</a>
+    <a class="stats-nav {{ 'active' if request.blueprint == 'planner' }}" href="{{ url_for('planner.index') }}">Routes</a>
     <div class="header-actions">{% if request.endpoint != 'web.profile' %}<a class="button primary header-import" href="{{ url_for('web.settings') }}">{{ icon('plus') }} Import run</a>{% endif %}<details class="account-dropdown"><summary class="avatar" aria-label="Account menu" title="Account menu">{{ current_user.display_name[:1]|upper }}</summary><div class="account-dropdown-menu"><strong>{{ current_user.display_name }}</strong><a href="{{ url_for('web.settings') }}">Settings & Garmin sync</a><a href="{{ url_for('web.settings') }}">Import runs</a><form method="post" action="{{ url_for('web.logout') }}"><input type="hidden" name="csrf_token" value="{{ csrf_token() }}"><button class="text-button">Sign out</button></form></div></details></div>
   </header>
   {% else %}