Add next-auth, direnv|flake.nix|.env.

Change-Id: I897a15f48ac61addfa27ca3d95e6c4849e73125a
Reviewed-on: https://git.clicks.codes/c/Caramels/Lotting/+/342
Tested-by: Samuel Shuert <coded@clicks.codes>
Reviewed-by: Samuel Shuert <coded@clicks.codes>
diff --git a/.gitignore b/.gitignore
index fd3dbb5..31cd26b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,8 @@
 # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 
+.env
+.direnv/
+
 # dependencies
 /node_modules
 /.pnp