Vendor pyusb wheel for offline Windows source installs

Include pyusb-1.2.1-py3-none-any.whl under vendor/wheels and wire
setup scripts to pip install --no-index --find-links.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/setup_macos.sh

@@ -14,12 +14,15 @@ python3 -m venv .venv
 # shellcheck disable=SC1091
 source .venv/bin/activate
 pip install -U pip
-pip install -r requirements.txt
+# vendor wheel 우선 (오프라인 가능)
+pip install --no-index --find-links=vendor/wheels -r requirements.txt \
+  || pip install --find-links=vendor/wheels -r requirements.txt
 pip install -e .
 
 echo
 echo "설치 완료. 예:"
 echo "  source $ROOT/.venv/bin/activate"
 echo "  juc500 info"
+echo "  juc500 gui"
 echo "  juc500 recv -y --dest ~/Downloads"
 echo "  juc500 send /path/to/file"

scripts/setup_windows.bat

@@ -5,12 +5,21 @@ cd /d %~dp0..
 py -3 -m venv .venv
 call .venv\Scripts\activate.bat
 python -m pip install -U pip
-pip install -r requirements.txt
-pip install -e .
+REM PyPI 없이 vendor\wheels 의 pyusb wheel 사용
+python -m pip install --no-index --find-links=vendor\wheels -r requirements.txt
+if errorlevel 1 (
+  echo [!] --no-index 실패. find-links + 온라인 허용으로 재시도…
+  python -m pip install --find-links=vendor\wheels -r requirements.txt
+)
+python -m pip install --no-index --find-links=vendor\wheels -e .
+if errorlevel 1 (
+  python -m pip install --find-links=vendor\wheels -e .
+)
 
 echo.
 echo Setup done. Next:
 echo   .venv\Scripts\activate
 echo   python -m juc500_xfer info
+echo   python -m juc500_xfer gui
 echo See docs\WINDOWS.md for Zadig / WinUSB steps.
 endlocal