refactor: move logs to timber

app/src/main/java/com/bitcointxoko/gudariwallet/sync/HistoricalSyncWorker.kt

@@ -1,7 +1,7 @@
 package com.bitcointxoko.gudariwallet.sync
 
 import android.content.Context
-import android.util.Log
+import timber.log.Timber
 import androidx.work.CoroutineWorker
 import androidx.work.WorkerParameters
 import androidx.work.workDataOf
@@ -29,11 +29,11 @@ class HistoricalSyncWorker(
     override suspend fun doWork(): Result {
         // Guard: already completed — safe if WorkManager ever retries a success
         if (syncStore.isComplete()) {
-            Log.d(TAG, "Already complete — skipping")
+            Timber.d("Already complete — skipping")
             return Result.success()
         }
 
-        Log.d(TAG, "Starting historical payment sync")
+        Timber.d("Starting historical payment sync")
         var offset = 0
         var total  = -1
 
@@ -41,14 +41,14 @@ class HistoricalSyncWorker(
             val page = runCatching {
                 repo.getPaymentsPaginated(offset = offset, limit = PAGE_SIZE)
             }.getOrElse { e ->
-                Log.w(TAG, "Network error on offset=$offset: ${e.message} — scheduling retry")
+                Timber.w("Network error on offset=$offset: ${e.message} — scheduling retry")
                 return Result.retry()  // WorkManager applies exponential backoff automatically
             }
 
             // First page: learn the real total from the server
             if (total == -1) {
                 total = page.total
-                Log.d(TAG, "Server reports $total total payments")
+                Timber.d("Server reports $total total payments")
                 if (total == 0) {
                     syncStore.markComplete()
                     return Result.success()
@@ -59,7 +59,7 @@ class HistoricalSyncWorker(
             paymentCache.mergePayments(page.data)
             offset += page.data.size
 
-            Log.d(TAG, "Progress: $offset / $total")
+            Timber.d("Progress: $offset / $total")
             setProgress(workDataOf(
                 KEY_FETCHED to offset,
                 KEY_TOTAL   to total
@@ -70,7 +70,7 @@ class HistoricalSyncWorker(
         }
 
         syncStore.markComplete()
-        Log.d(TAG, "Historical sync complete — $offset payments stored")
+        Timber.d("Historical sync complete — $offset payments stored")
         NotificationHelper.notifySyncComplete(applicationContext, offset)
         return Result.success()
     }