Update download progress on pause

src/exo/download/coordinator.py

@@ -158,10 +158,17 @@ class DownloadCoordinator:
             logger.info(f"Cancelling download for {model_id}")
             self.active_downloads[model_id].cancel()
             current_status = self.download_status[model_id]
+            downloaded = Memory()
+            total = Memory()
+            if isinstance(current_status, DownloadOngoing):
+                downloaded = current_status.download_progress.downloaded
+                total = current_status.download_progress.total
             pending = DownloadPending(
                 shard_metadata=current_status.shard_metadata,
                 node_id=self.node_id,
                 model_directory=self._default_model_dir(model_id),
+                downloaded=downloaded,
+                total=total,
             )
             self.download_status[model_id] = pending
             await self.event_sender.send(

src/exo/download/tests/test_cancel_download.py

@@ -189,6 +189,14 @@ async def test_cancel_active_download_transitions_to_pending() -> None:
         # Wait for the download to actually start (blocking in ensure_shard)
         await asyncio.wait_for(slow_downloader.download_started.wait(), timeout=2.0)
 
+        # Drain any events emitted before the cancel (initial DownloadPending, DownloadOngoing)
+        while True:
+            try:
+                async with asyncio.timeout(0.1):
+                    await event_recv.receive()
+            except TimeoutError:
+                break
+
         # Cancel the download
         await cmd_send.send(
             ForwarderDownloadCommand(
@@ -197,10 +205,11 @@ async def test_cancel_active_download_transitions_to_pending() -> None:
             )
         )
 
-        # Should receive a DownloadPending event
+        # Should receive a DownloadPending event with preserved progress
         pending = await _wait_for_pending(event_recv, MODEL_ID)
         assert pending is not None, "Cancel should emit DownloadPending"
         assert pending.shard_metadata.model_card.model_id == MODEL_ID
+        assert pending.total == Memory.from_mb(100), "Should preserve total bytes"
 
         # Give coordinator time to clean up
         await asyncio.sleep(0.05)