Add Cloudflare/nginx proxy support and production setup

- Updated ProxyFix configuration for Cloudflare + nginx
- Added custom IP detection for real client IPs
- Updated rate limiting to use real IPs
- Added nginx configuration example
- Added Cloudflare setup guide
- Added production server setup script

setup.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# ircquotes production server setup script
+# Run this after cloning the repository
+
+echo "Setting up ircquotes on production server..."
+
+# Create instance directory
+echo "Creating instance directory..."
+mkdir -p instance
+
+# Generate secret key
+echo "Generating Flask secret key..."
+python3 -c "import secrets; print(secrets.token_hex(32))" > instance/flask_secret_key
+
+# Create empty database file
+echo "Creating database file..."
+touch instance/quotes.db
+
+# Set permissions
+echo "Setting file permissions..."
+chmod 600 instance/flask_secret_key
+chmod 664 instance/quotes.db
+
+# Create virtual environment
+echo "Creating virtual environment..."
+python3 -m venv .venv
+
+# Activate and install dependencies
+echo "Installing dependencies..."
+source .venv/bin/activate
+pip install -r requirements.txt
+
+# Initialize database
+echo "Initializing database..."
+python -c "from app import app, db; app.app_context().push(); db.create_all(); print('Database initialized successfully!')"
+
+echo ""
+echo "Setup complete! You can now:"
+echo "1. Configure admin credentials:"
+echo "   python generate_password.py"
+echo "   python config_manager.py admin.username 'yourusername'"
+echo "   python config_manager.py admin.password_hash 'generated_hash'"
+echo ""
+echo "2. Start the application:"
+echo "   source .venv/bin/activate"
+echo "   gunicorn --config gunicorn.conf.py app:app"
+echo ""
+echo "3. Or run in development mode:"
+echo "   python app.py"