fix(codex): invoke Windows hook command through PowerShell

hooks/hooks-codex.json

@@ -2,11 +2,12 @@
   "hooks": {
     "SessionStart": [
       {
-        "matcher": "startup|clear|compact",
+        "matcher": "startup|resume|clear",
         "hooks": [
           {
             "type": "command",
             "command": "\"${PLUGIN_ROOT}/hooks/run-hook.cmd\" session-start-codex",
+            "commandWindows": "& \"${PLUGIN_ROOT}/hooks/run-hook.cmd\" session-start-codex",
             "async": false
           }
         ]