feat: add basic support for "reports" feature

not much here yet, but trying to keep it lean and unopinionated since
implementations will probably vary a bit

tests/test_app.py

@@ -557,6 +557,12 @@ app_title = WuttaTest
         people = self.app.get_people_handler()
         self.assertIsInstance(people, PeopleHandler)
 
+    def test_get_report_handler(self):
+        from wuttjamaican.reports import ReportHandler
+
+        handler = self.app.get_report_handler()
+        self.assertIsInstance(handler, ReportHandler)
+
     def test_send_email(self):
         from wuttjamaican.email import EmailHandler