fix(progress): force track bar completion on terminal states

unshackle/core/tracks/tracks.py

@@ -95,7 +95,7 @@ class Tracks:
 
         return rep
 
-    def tree(self, add_progress: bool = False) -> tuple[Tree, list[partial]]:
+    def tree(self, add_progress: bool = False) -> tuple[Tree, list[Callable[..., None]]]:
         all_tracks = [*list(self), *self.chapters, *self.attachments]
 
         progress_callables = []
@@ -121,7 +121,26 @@ class Tracks:
                         speed_estimate_period=10,
                     )
                     task = progress.add_task("", downloaded="-")
-                    progress_callables.append(partial(progress.update, task_id=task))
+
+                    current_total = 100.0
+
+                    def update_track_progress(task_id: int = task, **kwargs) -> None:
+                        """
+                        Ensure terminal status states render as a fully completed bar.
+
+                        Some downloaders can report completed slightly below total
+                        before emitting the final "Downloaded" state.
+                        """
+                        nonlocal current_total
+                        if "total" in kwargs and kwargs["total"] is not None:
+                            current_total = kwargs["total"]
+
+                        downloaded_state = kwargs.get("downloaded")
+                        if downloaded_state in {"Downloaded", "Decrypted", "[yellow]SKIPPED"}:
+                            kwargs["completed"] = current_total
+                        progress.update(task_id=task_id, **kwargs)
+
+                    progress_callables.append(update_track_progress)
                     track_table = Table.grid()
                     track_table.add_row(str(track)[6:], style="text2")
                     track_table.add_row(progress)