printUsage method
Prints the usage information for this runner.
This is called internally by run and can be overridden by subclasses to control how output is displayed or integrate with a logging system.
Implementation
@override
void printUsage() {
print('DCFlight CLI - Development tools for DCFlight framework\n');
print('Usage: dcf <command> [options]\n');
print('Available commands:');
print(' create Create new DCFlight projects or modules');
print(' add Add packages to your DCFlight project');
print(' run Run DCFlight app');
print('\nRun "dcf help <command>" for more information about a command.');
}