Feature/ingestion pipeline

core/src/main/java/com/opencontext/common/CommonResponse.java

@@ -83,6 +83,19 @@ public static <T> CommonResponse<T> error(String message, String errorCode) {
         );
     }
 
+    /**
+     * Static factory method for creating error responses with message only.
+     */
+    public static <T> CommonResponse<T> error(String message) {
+        return new CommonResponse<>(
+                false,
+                null,
+                message,
+                "INTERNAL_ERROR",
+                LocalDateTime.now()
+        );
+    }
+
     /**
      * Static factory method for creating error responses from ErrorCode enum.
      */

core/src/main/java/com/opencontext/config/WebConfig.java

@@ -1,6 +1,8 @@
 package com.opencontext.config;
 
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.client.RestTemplate;
 import org.springframework.web.servlet.config.annotation.CorsRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
@@ -15,6 +17,14 @@ public class WebConfig implements WebMvcConfigurer {
      * CORS configuration.
      * Allows CORS for communication with frontend in development environment.
      */
+    /**
+     * RestTemplate bean for HTTP client operations.
+     */
+    @Bean
+    public RestTemplate restTemplate() {
+        return new RestTemplate();
+    }
+
     @Override
     public void addCorsMappings(CorsRegistry registry) {
         registry.addMapping("/api/**")

core/src/main/java/com/opencontext/controller/SourceController/DocsSourceController.java → core/src/main/java/com/opencontext/controller/DocsSourceController.java

@@ -1,4 +1,4 @@
-package com.opencontext.controller.SourceController;
+package com.opencontext.controller;
 
 import com.opencontext.common.CommonResponse;
 import com.opencontext.common.PageResponse;