feat: add Node.js version management and improve error handling

- Introduced a .nvmrc file to specify the Node.js version (22) for the project, ensuring consistent development environments.
- Enhanced error handling in the startServer function to provide clearer messages when the Node.js executable cannot be found, improving debugging experience.
- Updated package.json files across various modules to enforce Node.js version compatibility and ensure consistent dependency versions.

These changes aim to streamline development processes and enhance the application's reliability by enforcing version control and improving error reporting.

apps/ui/src/main.ts

@@ -355,8 +355,11 @@ async function startServer(): Promise<void> {
           `Node.js executable not found at: ${command} (source: ${nodeResult.source})`
         );
       }
-    } catch {
-      throw new Error(`Node.js executable not found at: ${command} (source: ${nodeResult.source})`);
+    } catch (error) {
+      const originalError = error instanceof Error ? error.message : String(error);
+      throw new Error(
+        `Failed to verify Node.js executable at: ${command} (source: ${nodeResult.source}). Reason: ${originalError}`
+      );
     }
   }