ci: stage the Mac launch check on the internal volume

scripts/smoke_test_api.py

@@ -10,11 +10,17 @@ import urllib.error
 import urllib.request
 from pathlib import Path
 
-app = Path(sys.argv[1]) / "Contents/MacOS/Meetingnotes"
-with socket.socket() as listener:
+# Launch from the Mac's internal volume; the runner checkout is on removable storage.
+cache = Path.home() / "Library/Caches/meetingnotes-ci"
+cache.mkdir(parents=True, exist_ok=True)
+with tempfile.TemporaryDirectory(prefix="smoke-", dir=cache) as directory:
+    staged = Path(directory) / "Meetingnotes.app"
+    subprocess.run(["ditto", sys.argv[1], str(staged)], check=True)
+    app = staged / "Contents/MacOS/Meetingnotes"
+    with socket.socket() as listener:
         listener.bind(("127.0.0.1", 0))
         port = listener.getsockname()[1]
-with tempfile.TemporaryFile() as log:
+    with tempfile.TemporaryFile() as log:
         process = subprocess.Popen(
             [str(app), "-muteDeckAPIEnabled", "YES", "-muteDeckAPIPort", str(port), "-hasCompletedOnboarding", "YES", "-hasAcceptedTerms", "YES", "-SUEnableAutomaticChecks", "NO"],
             stdout=log, stderr=subprocess.STDOUT,