feat(config): añadida clase de configuración WebClient con el cliente de Gemini

src/main/java/com/example/apprecetas/cors/CorsConfig.java → src/main/java/com/example/apprecetas/config/CorsConfig.java

-package com.example.apprecetas.cors;
+package com.example.apprecetas.config;
 
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

src/main/java/com/example/apprecetas/config/WebClientConfig.java

+package com.example.apprecetas.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.reactive.function.client.WebClient;
+
+@Configuration
+public class WebClientConfig {
+
+    @Bean
+    public WebClient geminiClient() {
+        return WebClient.builder()
+                .baseUrl("http://localhost:5000")
+                .build();
+    }
+
+}