Include instance folder in git and improve setup

- Updated .gitignore to include instance folder but exclude sensitive files
- Added instance/README.md with setup instructions
- Updated setup script with better configuration examples
- Instance folder will now be tracked in git to preserve quotes.db

setup.sh

@@ -5,17 +5,19 @@
 
 echo "Setting up ircquotes on production server..."
 
-# Create instance directory
-echo "Creating instance directory..."
+# Instance directory should already exist from git
+# But create it if it doesn't
 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
+# Create empty database file if it doesn't exist
+if [ ! -f "instance/quotes.db" ]; then
+    echo "Creating database file..."
+    touch instance/quotes.db
+fi
 
 # Set permissions
 echo "Setting file permissions..."
@@ -42,9 +44,14 @@ 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 "2. Configure other settings:"
+echo "   python config_manager.py app.port 6969"
+echo "   python config_manager.py quotes.min_length 1"
+echo "   python config_manager.py quotes.max_length 10000"
+echo ""
+echo "3. 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 "4. Or run in development mode:"
 echo "   python app.py"