Initial commit: EatMe attendance tracker

Google-SSO PWA for bistro employee clock-in/out, admin employee
management, and stats with CSV export. Express + SQLite backend,
React + Zustand frontend in the light-mono-tui design language.
Multi-stage Dockerfile, compose.yaml for image-based deploys, nginx
reverse-proxy template, and an OKF documentation bundle in docs/.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

backend/.env.example

@@ -0,0 +1,22 @@
+# Port the API listens on
+PORT=4000
+
+# OAuth client ID from Google Cloud Console (Web application).
+# Must match the client ID used by the frontend's Google Sign-In button.
+GOOGLE_CLIENT_ID=your-google-client-id.apps.googleusercontent.com
+
+# Comma-separated list of email addresses that get admin access.
+# Admins do not need a row in the employees table.
+ADMIN_EMAILS=kamarad@example.com
+
+# Secret used to sign session JWTs. Generate with: openssl rand -hex 32
+JWT_SECRET=change-me-to-a-long-random-string
+
+# Where the SQLite database file lives.
+DB_PATH=./data/eatme.db
+
+# Origin of the frontend app, for CORS + cookie settings.
+CORS_ORIGIN=http://localhost:5173
+
+# Set to "true" behind HTTPS in production so the session cookie gets Secure.
+COOKIE_SECURE=false