Ensure default timeout is number casted to float and is at least zero

Author: westonruter

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

@@ -190,14 +190,22 @@ public function __construct( ProviderRegistry $registry, $prompt = null ) {
 			$this->error   = $this->exception_to_wp_error( $e );
 		}
 
+		$default_timeout = 30;
+
 		/**
 		 * Filters the default request timeout in seconds for AI Client HTTP requests.
 		 *
 		 * @since 7.0.0
 		 *
-		 * @param int $default_timeout The default timeout in seconds.
+		 * @param float $default_timeout The default timeout in seconds.
 		 */
-		$default_timeout = (int) apply_filters( 'wp_ai_client_default_request_timeout', 30 );
+		$timeout = apply_filters( 'wp_ai_client_default_request_timeout', $default_timeout );
+		if ( is_numeric( $timeout ) ) {
+			$timeout = (float) $timeout;
+			if ( $timeout >= 0 ) {
+				$default_timeout = $timeout;
+			}
+		}
 
 		$this->builder->usingRequestOptions(
 			RequestOptions::fromArray(