♻️ Refactor watchOS content view

ios/WatchRunner Watch App/Utils/AttachmentUtils.swift

@@ -0,0 +1,21 @@
+//
+//  AttachmentUtils.swift
+//  WatchRunner Watch App
+//
+//  Created by LittleSheep on 2025/10/29.
+//
+
+import Foundation
+
+// MARK: - Helper Functions
+
+func getAttachmentUrl(for fileId: String, serverUrl: String) -> URL? {
+    let urlString: String
+    if fileId.starts(with: "http") {
+        urlString = fileId
+    } else {
+        urlString = "\(serverUrl)/drive/files/\(fileId)"
+    }
+    print("[watchOS] Generated image URL: \(urlString)")
+    return URL(string: urlString)
+}