-- Add default tenant if not exists
INSERT INTO tenants (id, name, theme, avatar_enabled, greeting, allowed_tools, policy)
VALUES (
    'default',
    'Default Tenant',
    '{"primaryColor": "#0066cc", "secondaryColor": "#004499"}'::jsonb,
    true,
    'Hello! How can I help you today?',
    '[]'::jsonb,
    '{"max_session_duration_minutes": 30, "rate_limit_per_minute": 10, "require_consent": true}'::jsonb
) ON CONFLICT (id) DO NOTHING;