phase2: add modular apps, auth scaffolding, and base template routing

templates/core/dashboard.html

@@ -0,0 +1,11 @@
+{% extends 'base.html' %}
+
+{% block title %}HoopScout | Dashboard{% endblock %}
+
+{% block content %}
+<section class="panel">
+  <h1>Dashboard</h1>
+  <p>Welcome, {{ request.user.username }}.</p>
+  <p>This is the authenticated control center for saved searches and watchlists.</p>
+</section>
+{% endblock %}