feat(coral-tpu): dynamic pycoral wheel resolution for Windows Python 3.10+

Google's official Edge TPU wheels only support Windows Python up to 3.9.
We now use an inline Python script to probe sys.version_info during deploy.bat
execution. It automatically falls back to community-compiled PyCoral wheels
(feranick/pycoral) if Python 3.10 or 3.11 are detected natively.

Also added user alerts advising that UAC will spawn a detached Google setup
console window that they must wait for.

Author: solderzzc

skills/detection/yolo-detection-2026-coral-tpu/deploy.bat

@@ -38,7 +38,8 @@ powershell -Command "Expand-Archive -Path 'edgetpu_runtime_20221024.zip' -Destin
 cd edgetpu_runtime
 
 echo %LOG_PREFIX% Prompting for Administrator rights to install drivers... 1>&2
-echo {"event": "progress", "stage": "platform", "message": "UAC required: Install Google Coral Edge TPU Windows Runtime"}
+echo {"event": "progress", "stage": "platform", "message": "A separate UAC prompt and blue terminal will appear. Please approve it."}
+echo {"event": "progress", "stage": "platform", "message": "Waiting for Google install.bat to finish..."}
 
 REM Start the official install script elevated. Wait for it to finish.
 powershell -Command "Start-Process -FilePath 'cmd.exe' -ArgumentList '/c', 'install.bat < nul' -Verb RunAs -Wait"
@@ -101,9 +102,9 @@ echo {"event": "progress", "stage": "build", "message": "Fetching pycoral specif
 
 "%VENV_DIR%\Scripts\python.exe" -m pip install --upgrade pip >nul 2>&1
 
-"%VENV_DIR%\Scripts\python.exe" -m pip install --extra-index-url https://google-coral.github.io/py-repo/ pycoral~=2.0
+"%VENV_DIR%\Scripts\python.exe" "%SKILL_DIR%scripts\install_pycoral.py"
 if %errorlevel% neq 0 (
-    echo %LOG_PREFIX% WARNING: pip install pycoral failed. Will attempt to install standard requirements anyway. 1>&2
+    echo %LOG_PREFIX% WARNING: pycoral install script failed. 1>&2
 )
 
 "%VENV_DIR%\Scripts\python.exe" -m pip install -r "%SKILL_DIR%requirements.txt"

skills/detection/yolo-detection-2026-coral-tpu/scripts/install_pycoral.py

@@ -0,0 +1,51 @@
+import sys
+import subprocess
+import json
+
+def emit(event_dict):
+    print(json.dumps(event_dict), flush=True)
+
+def main():
+    py_major = sys.version_info.major
+    py_minor = sys.version_info.minor
+
+    emit({"event": "progress", "stage": "build", "message": f"Detected Python {py_major}.{py_minor} — selecting appropriate PyCoral wheel..."})
+
+    if py_major == 3 and py_minor <= 9:
+        emit({"event": "progress", "stage": "build", "message": "Installing official Google pycoral 2.0 (Python <=3.9)..."})
+        url = "https://google-coral.github.io/py-repo/"
+        try:
+            subprocess.check_call([sys.executable, "-m", "pip", "install", "--extra-index-url", url, "pycoral~=2.0"])
+        except subprocess.CalledProcessError:
+            print("WARNING: Official pycoral install failed.")
+            sys.exit(1)
+
+    elif py_major == 3 and py_minor == 10:
+        emit({"event": "progress", "stage": "build", "message": "Installing community pycoral for Python 3.10 (feranick/pycoral)..."})
+        url = "https://github.com/feranick/pycoral/releases/download/2.0.0TF2.11.1-1/pycoral-2.0.0-cp310-cp310-win_amd64.whl"
+        try:
+            subprocess.check_call([sys.executable, "-m", "pip", "install", url])
+        except subprocess.CalledProcessError:
+            print("ERROR: Failed to install community wheel for Python 3.10")
+            sys.exit(1)
+
+    elif py_major == 3 and py_minor == 11:
+        emit({"event": "progress", "stage": "build", "message": "Installing community pycoral for Python 3.11 (feranick/pycoral)..."})
+        url = "https://github.com/feranick/pycoral/releases/download/2.0.0TF2.11.1-1/pycoral-2.0.0-cp311-cp311-win_amd64.whl"
+        try:
+            subprocess.check_call([sys.executable, "-m", "pip", "install", url])
+        except subprocess.CalledProcessError:
+            print("ERROR: Failed to install community wheel for Python 3.11")
+            sys.exit(1)
+
+    else:
+        emit({
+            "event": "error", 
+            "stage": "build", 
+            "message": f"No pre-compiled PyCoral Windows wheels for Python {py_major}.{py_minor}. Please downgrade to Python 3.9, 3.10, or 3.11."
+        })
+        print(f"ERROR: Unsupported Python version {py_major}.{py_minor} for Edge TPU on Windows.")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    main()