feat: no console drop when uninstalling backends

1 files changed, 12 insertions, 3 deletions

diff --git a/app/backends/audiocpp.py b/app/backends/audiocpp.py
index 0feb480..31aa01d 100755
--- a/app/backends/audiocpp.py
+++ b/app/backends/audiocpp.py
@@ -1650,16 +1650,25 @@ def delete_model_files(server_json: Path, entries: List[dict]) -> int:
     return removed
 
 
-def uninstall() -> int:
+def uninstall(*, emit=None, cancel=None) -> int:
     """Remove the audio.cpp backend entirely: stop its server, delete the checkout.
 
     The checkout (``app/audio.cpp``, or wherever ``find_local_checkout``
     resolves it) holds the built binary, the downloaded models, and the
     server.json, so removing the directory uninstalls the backend. A running
-    server this tool started is stopped first (best-effort). Returns the exit
-    code.
+    server this tool started is stopped first (best-effort).
+
+    EMIT is accepted for registry symmetry with the other backends but is
+    unused here — this uninstall has no subprocess phase, and its prints are
+    captured by the task view when run in the TUI. CANCEL is a
+    ``threading.Event`` honored between phases only (after the server has
+    been stopped, before the checkout is deleted), so a started phase always
+    completes and the uninstall never tears halfway. Returns the exit code
+    (130 when cancelled before a remaining phase).
     """
     servers.stop("audiocpp")
+    if common.cancel_requested(cancel):
+        return 130
     checkout = find_local_checkout()
     if checkout is None:
         print("[INFO] No audio.cpp checkout to remove.")