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API/HTTP.py

@@ -229,6 +229,13 @@ class HTTPClient:
             response.raise_for_status()
             total_bytes = int(response.headers.get("content-length", 0))
             bytes_downloaded = 0
+
+            # Render progress immediately (even if the transfer is very fast)
+            if progress_callback:
+                try:
+                    progress_callback(0, total_bytes)
+                except Exception:
+                    pass
             
             with open(path, "wb") as f:
                 for chunk in response.iter_bytes(chunk_size):
@@ -237,6 +244,13 @@ class HTTPClient:
                         bytes_downloaded += len(chunk)
                         if progress_callback:
                             progress_callback(bytes_downloaded, total_bytes)
+
+            # Ensure a final callback is emitted.
+            if progress_callback:
+                try:
+                    progress_callback(bytes_downloaded, total_bytes)
+                except Exception:
+                    pass
         
         return path