Create email template

Create a new email template for reusable email notifications.

Features:

• HTML and plain text content support
• Template variable system with {{variable}} syntax
• Categorization and tagging
• Validation and variable extraction
• Metadata storage for custom properties

Template Variables:

• Use {{variableName}} syntax in subject, HTML, and text
• Variables are automatically extracted and validated
• Declare variables in the ‘variables’ array for better documentation
• Unused or undeclared variables generate warnings

Categories:

• Organize templates by category (e.g., “marketing”, “transactional”, “system”)
• Default category is “general”
• Categories help with filtering and organization

Use Cases:

• Welcome emails
• Password reset notifications
• Marketing campaigns
• System alerts
• Newsletter templates