refactor: centralize error handling utilities across route modules

- Introduced a new common utility module for error handling, providing consistent methods for retrieving error messages and logging errors.
- Updated individual route modules to utilize the shared error handling functions, reducing code duplication and improving maintainability.
- Ensured all routes now log errors in a standardized format, enhancing debugging and monitoring capabilities.

apps/server/src/routes/suggestions/common.ts

@@ -3,6 +3,10 @@
  */
 
 import { createLogger } from "../../lib/logger.js";
+import {
+  getErrorMessage as getErrorMessageShared,
+  createLogError,
+} from "../common.js";
 
 const logger = createLogger("Suggestions");
 
@@ -21,16 +25,6 @@ export function setRunningState(
   currentAbortController = controller;
 }
 
-/**
- * Get error message from error object
- */
-export function getErrorMessage(error: unknown): string {
-  return error instanceof Error ? error.message : "Unknown error";
-}
-
-/**
- * Log error details consistently
- */
-export function logError(error: unknown, context: string): void {
-  logger.error(`❌ ${context}:`, error);
-}
+// Re-export shared utilities
+export { getErrorMessageShared as getErrorMessage };
+export const logError = createLogError(logger);

apps/server/src/routes/suggestions/routes/generate.ts

@@ -43,7 +43,7 @@ export function createGenerateHandler(events: EventEmitter) {
       // Start generation in background
       generateSuggestions(projectPath, suggestionType, events, abortController)
         .catch((error) => {
-          logger.error("[Suggestions] Error:", error);
+          logError(error, "Generate suggestions failed (background)");
           events.emit("suggestions:event", {
             type: "suggestions_error",
             error: getErrorMessage(error),