use env vars for secrets (ETHICA_TOKEN/HOME/INTERVAL override config)

.env.example

@@ -0,0 +1,6 @@
+# Copy to .env and fill in your values.
+# Get your token: admin panel → Company → API tab → Company token
+
+ETHICA_TOKEN=paste-your-company-token-here
+ETHICA_HOME=https://ethica.no
+# ETHICA_INTERVAL=60