Throw when no default targets are found

[kraenhansen]

Merging this PR will:

• Throw an error when no explicit targets are provided and no default targets are found.

[changeset-bot]

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Latest commit: ffd08dc

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[Copilot]

Pull Request Overview

This PR adds a guard to error out when no default build triplets are found, instead of proceeding silently.

• Checks if triplets is empty and throws a user-facing error.
• Moves the default-triplet info log into an else branch.

Comments suppressed due to low confidence (1)

packages/cmake-rn/src/cli.ts:148

• [nitpick] Hyphenate 'platform-specific' and consider adding guidance on how to explicitly provide targets (e.g., --targets) to help users resolve this error.

            "Found no default triplets: Install some platform specific build tools"

[Copilot]

Consider using commander’s program.error() or printing a clear message with console.error() followed by process.exit(1) instead of throwing a raw Error, to avoid exposing a stack trace in normal CLI usage.

Suggested change

	throw new Error(
	"Found no default triplets: Install some platform specific build tools"
	);
	console.error(
	chalk.redBright("✖"),
	"Found no default triplets: Install some platform specific build tools"
	);
	process.exit(1);

[kraenhansen]

I'd like to postpone this to another PR copying the error handling from ferric somewhere shared between the different CLIs:

react-native-node-api/packages/ferric/src/build.ts

Lines 293 to 306 in d9e1a96

	if (error instanceof UsageError || error instanceof SpawnFailure) {
	console.error(chalk.red("ERROR"), error.message);
	if (error.cause instanceof Error) {
	console.error(chalk.red("CAUSE"), error.cause.message);
	}
	if (error instanceof UsageError && error.fix) {
	console.error(
	chalk.green("FIX"),
	error.fix.command
	? chalk.dim("Run: ") + error.fix.command
	: error.fix.instructions
	);
	}
	} else {