Update addon tests, bootstrap runtime, download progress, and worker functionality

- Modified status messages and stage labels in `test_addon.py` for clarity and consistency.
- Added tests to ensure proper host termination and command execution in `test_addon.py`.
- Enhanced `test_bootstrap_runtime.py` with additional tests for installation behavior, including handling of CUDA and MPS devices, and improved error handling for disk space and network checks.
- Updated download progress reporting in `test_download_progress.py` to include download speed and improved message formatting.
- Added new tests in `test_worker.py` for device selection, NPZ file validation, and model downloading behavior with Hugging Face endpoints.
- Bumped version in `uv.lock` to 0.9.30.

src/snapform/operators.py

@@ -61,8 +61,6 @@ def active_job():
 
 
 def cancel_active_job():
-    global _active_job
-
     if _active_job is None:
         return
     _active_job.cancelled = True
@@ -422,10 +420,12 @@ class RunJob(bpy.types.Operator):
         stage_label = status.get("stage_label")
         if not stage or not stages:
             return message
-        stage_text = f"Step {stage}/{stages}"
-        if stage_label:
-            stage_text = f"{stage_text} {stage_label}"
-        return f"{stage_text}: {message}" if message else stage_text
+        text = (
+            f"{stage}/{stages} {stage_label}"
+            if stage_label
+            else f"{stage}/{stages}"
+        )
+        return f"{text}: {message}" if message else text
 
     def _finish(self, context, job, return_code):
         settings = context.scene.snapform_settings