Adds a filter to allow modifying the prompt programmatically

Author: gsarig

includes/classes/Feature/RAG.php

@@ -279,7 +279,11 @@ public function get_ai_response( $search_term, $search_vectors = null ) {
 			];
 		}
 
-		$prompt   = $this->get_prompt( $posts_representations );
+		$prompt   = apply_filters(
+			'ep_rag_prompt',
+			$this->get_prompt( $posts_representations ),
+			$posts_representations
+		);
 		$response = $this->ai_api_request( $prompt, $search_term );
 
 		/**