fix logger + .env.example

.env.example

@@ -1,9 +1,15 @@
-API_ADMIN_USERNAME= # default to admin (must be set on production !)
-API_ADMIN_PASSWORD= # default to admin (must be set on production !)
+# default to admin (must be set on production !)
+API_ADMIN_USERNAME=
+# default to admin (must be set on production !)
+API_ADMIN_PASSWORD=
 
-API_SESSION_EXPIRATION_DURATION= # in seconds (default to 30s)
+# in seconds (default to 30s)
+API_SESSION_EXPIRATION_DURATION=
 
-API_PORT= # defaul to 8585
-API_SECURE= # default to "false"
+# default to 8585
+API_PORT=
+# default to "false"
+API_SECURE=
 
-API_STORE_DIR= # default to "./store"
+# default to "./store"
+API_STORE_DIR=