Console: added detectTerminal() as reusable TTY check

Extracted the TTY detection out of detectColors() so it can be used
independently to auto-disable features that only make sense in an
interactive terminal (progress indicators, line-rewriting output).
detectColors() now builds on top of detectTerminal() and adds the
NO_COLOR/FORCE_COLOR environment logic on top.

Author: dg

src/CommandLine/Console.php

@@ -60,16 +60,27 @@ public function color(?string $color, ?string $s = null): string
 	/**
 	 * Detects whether the terminal supports ANSI colors.
 	 * Returns false when NO_COLOR is set, or when not running in a CLI TTY.
-	 * On Windows, checks VT100 support via sapi_windows_vt100_support().
+	 * FORCE_COLOR overrides the TTY check.
 	 */
 	public static function detectColors(): bool
 	{
 		return (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg')
 			&& getenv('NO_COLOR') === false // https://no-color.org
-			&& (getenv('FORCE_COLOR')
-				|| (function_exists('sapi_windows_vt100_support')
-					? sapi_windows_vt100_support(STDOUT)
-					: @stream_isatty(STDOUT)) // @ may trigger error 'cannot cast a filtered stream on this system'
-			);
+			&& (getenv('FORCE_COLOR') || self::detectTerminal());
+	}
+
+
+	/**
+	 * Detects whether the output is an interactive terminal.
+	 * Useful for auto-disabling features that only make sense in a TTY
+	 * (progress indicators, line-rewriting output, interactive prompts).
+	 * On Windows, checks VT100 support via sapi_windows_vt100_support().
+	 */
+	public static function detectTerminal(): bool
+	{
+		return (PHP_SAPI === 'cli' || PHP_SAPI === 'phpdbg')
+			&& (function_exists('sapi_windows_vt100_support')
+				? sapi_windows_vt100_support(STDOUT)
+				: @stream_isatty(STDOUT)); // @ may trigger error 'cannot cast a filtered stream on this system'
 	}
 }