Working basic htmx page and endpoint, WIP static file serving and dune test running

lib/db.ml

@@ -0,0 +1,9 @@
+open Base
+
+let%test_unit "rev" =
+  [%test_eq: int list] (List.rev [ 3; 2; 1 ]) [ 1; 2; 3 ]
+
+let test stdout db = 
+  let _ = stdout in
+  let _ = db in
+  Ok ()