chore: standardize security and quality foundations

.env.beta.example

@@ -0,0 +1,20 @@
+# Provision this as .env on the beta host. Do not copy production secrets or data.
+APP_NAME=Magent Beta
+CORS_ALLOW_ORIGIN=https://beta.grizzlyflix.co.nz
+MAGENT_APPLICATION_URL=https://beta.grizzlyflix.co.nz
+MAGENT_API_URL=https://beta.grizzlyflix.co.nz/api
+SQLITE_PATH=/app/data/magent.db
+LOG_FILE=/app/data/magent.log
+LOG_FORMAT=json
+
+JWT_SECRET=replace-with-an-independent-beta-secret-of-at-least-32-characters
+SETTINGS_ENCRYPTION_KEY=replace-with-an-independent-valid-fernet-key
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=replace-with-a-strong-beta-bootstrap-password
+
+AUTH_COOKIE_NAME=magent_beta_auth
+AUTH_STATE_COOKIE_NAME=magent_beta_logged_in
+AUTH_COOKIE_DOMAIN=beta.grizzlyflix.co.nz
+AUTH_COOKIE_SECURE=true
+AUTH_COOKIE_SAMESITE=strict
+API_DOCS_ENABLED=false