feat: Add TusUploadHelper to encapsulate and reuse the TUS upload flow logic.

Author: zerox80

opencloudApp/src/main/java/eu/opencloud/android/workers/TusUploadHelper.kt

@@ -143,7 +143,8 @@ class TusUploadHelper(
             tusSupport = tusSupport,
             progressListener = progressListener,
             progressCallback = progressCallback,
-            initialOffset = offset
+            initialOffset = offset,
+            uploadId = uploadId,
         )
 
         // Verify upload is actually complete
@@ -172,7 +173,8 @@ class TusUploadHelper(
         tusSupport: OCCapability.TusSupport?,
         progressListener: OnDatatransferProgressListener?,
         progressCallback: ((Long, Long) -> Unit)?,
-        initialOffset: Long
+        initialOffset: Long,
+        uploadId: Long,
     ): Long {
         var offset = initialOffset
         val serverMaxChunk = tusSupport?.maxChunkSize?.takeIf { it > 0 }?.toLong()
@@ -212,6 +214,9 @@ class TusUploadHelper(
                 )
 
                 // Try to recover the offset from server
+                val recoveredOffset = tryRecoverOffset(
+                    client = client,
+                    tusUrl = resolvedTusUrl,
                     currentOffset = offset,
                     totalSize = fileSize,
                     progressCallback = progressCallback,