fix: upload progress stuck at 0%

setProgressAsync (fire-and-forget) was dropping/coalescing updates before
they were persisted. Switch to awaited suspend setProgress() in both
UploadWorker and DownloadWorker so each progress write lands and the
LiveData observer actually sees pct advance.

android/app/src/main/java/com/yarisobd/app/DownloadWorker.kt

@@ -139,7 +139,7 @@ class DownloadWorker(
                             lastProgressMs = now
                             val pct = if (total > 0) ((downloaded * 100) / total).toInt() else 0
                             setForeground(createForegroundInfo(filename, pct, downloaded, total))
-                            setProgressAsync(workDataOf("pct" to pct))
+                            setProgress(workDataOf("pct" to pct))
                         }
                     }
                 }

android/app/src/main/java/com/yarisobd/app/UploadWorker.kt

@@ -55,14 +55,14 @@ class UploadWorker(
         try {
             // Promote to foreground immediately so large files aren't killed during hashing
             setForeground(DownloadWorker.createForegroundNotification(applicationContext, "Preparing $filename", 0))
-            setProgressAsync(workDataOf("pct" to 0, "status" to "Hashing…"))
+            setProgress(workDataOf("pct" to 0, "status" to "Hashing…"))
 
             // Compute SHA256
             val sha256 = computeSha256(file)
             val relativePath = filename  // Using filename as relative_path since flat dir
 
             // Check status
-            setProgressAsync(workDataOf("pct" to 0, "status" to "Checking server…"))
+            setProgress(workDataOf("pct" to 0, "status" to "Checking server…"))
             val statusUrl = "$serverUrl/api/v1/dashcam/upload/status?relative_path=$relativePath&sha256=$sha256"
             val statusReq = Request.Builder().url(statusUrl)
                 .addHeader("X-Device-Name", deviceName)
@@ -82,7 +82,7 @@ class UploadWorker(
 
             val totalChunks = ((file.length() + CHUNK_SIZE - 1) / CHUNK_SIZE).toInt()
             setForeground(DownloadWorker.createForegroundNotification(applicationContext, "Uploading $filename", 0))
-            setProgressAsync(workDataOf("pct" to 0, "status" to "Uploading…"))
+            setProgress(workDataOf("pct" to 0, "status" to "Uploading…"))
 
             // Upload missing chunks
             for (i in 0 until totalChunks) {
@@ -120,7 +120,7 @@ class UploadWorker(
 
                 val pct = ((i + 1) * 100) / totalChunks
                 setForeground(DownloadWorker.createForegroundNotification(applicationContext, "Uploading $filename", pct))
-                setProgressAsync(workDataOf("pct" to pct, "status" to "Uploading…"))
+                setProgress(workDataOf("pct" to pct, "status" to "Uploading…"))
             }
 
             return@withContext Result.success(workDataOf("filename" to filename))