fix(desktop): ship the VC++ runtime the Windows voice wheels need

onnxruntime (wake word) and ctranslate2 (local speech-to-text) link against
msvcp140.dll and msvcp140_1.dll, which the managed CPython does not ship.
On Windows without the system VC++ Redistributable both imports failed with
"DLL load failed: The specified module could not be found", so "Hey Hermes"
and voice chat transcription never worked.

- Bundle the Microsoft-signed VC143 CRT set (14.44.35211, matching the
  managed CPython's vcruntime140) as a Windows extra resource with a SHA-256
  manifest.
- Before every local backend start, copy missing or mismatching CRT files
  beside the managed python.exe (the process image directory, searched first),
  verifying digests; never overwrite the interpreter's own vcruntime and never
  block boot. Existing installs heal on their next launch.
- Report an unloadable native voice wheel as a VC++ runtime problem in the
  wake-word requirements, local transcription and `hermes doctor`, instead of
  treating installed package metadata as proof the wheel loads.
- Bump AITURK IDE to 1.0.0-beta.12.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

tests/conftest.py

@@ -625,6 +625,19 @@ def _neutralize_webbrowser(monkeypatch):
     return opened
 
 
+@pytest.fixture(autouse=True)
+def _neutralize_native_runtime_probe(monkeypatch):
+    """Report native voice wheels as loadable unless a test says otherwise.
+
+    The real probe imports onnxruntime/ctranslate2 in a child interpreter, so
+    its answer depends on the host's VC++ runtime rather than the code under
+    test. tests/tools/test_windows_native_runtime.py exercises the real probe.
+    """
+    import tools.windows_native_runtime as _native_runtime
+
+    monkeypatch.setattr(_native_runtime, "native_load_error", lambda module: None)
+
+
 @pytest.fixture(autouse=True)
 def _neutralize_macos_keychain_creds(request, monkeypatch):
     """Default Anthropic credential resolution away from the real macOS Keychain."""