Use float value explicitly for timeout

Author: westonruter

src/wp-includes/ai-client/class-wp-ai-client-prompt-builder.php

@@ -190,19 +190,19 @@ public function __construct( ProviderRegistry $registry, $prompt = null ) {
 			$this->error   = $this->exception_to_wp_error( $e );
 		}
 
-		$default_timeout = 30;
+		$default_timeout = 30.0;
 
 		/**
 		 * Filters the default request timeout in seconds for AI Client HTTP requests.
 		 *
 		 * @since 7.0.0
 		 *
-		 * @param float $default_timeout The default timeout in seconds.
+		 * @param float $default_timeout The default timeout in seconds. Must be greater than or equal to zero.
 		 */
 		$timeout = apply_filters( 'wp_ai_client_default_request_timeout', $default_timeout );
 		if ( is_numeric( $timeout ) ) {
 			$timeout = (float) $timeout;
-			if ( $timeout >= 0 ) {
+			if ( $timeout >= 0.0 ) {
 				$default_timeout = $timeout;
 			}
 		}