fix(stage-pocket): use system mkcert to work around feaxios download crash (#1220)

* fix(stage-pocket): use system mkcert to work around feaxios download crash

* fix(stage-pocket): add Windows compat for system mkcert lookup

Originally used `which` since this was an iOS-focused fix, but
considering Windows developers building for Android, use `where`
on win32 and handle multi-line output.

apps/stage-pocket/vite.config.ts

@@ -95,7 +95,12 @@ export default defineConfig({
   },
 
   plugins: [
-    ...isEnvTruthy(process.env.VITE_SKIP_MKCERT ?? '') ? [] : [mkcert()],
+    ...isEnvTruthy(process.env.VITE_SKIP_MKCERT ?? '') ? [] : [mkcert((() => {
+      // Workaround: plugin's bundled downloader has a feaxios bug, prefer system mkcert
+      const command = process.platform === 'win32' ? 'where' : 'which'
+      try { return { mkcertPath: execSync(`${command} mkcert`, { stdio: 'pipe' }).toString().trim().split(/\r?\n/)[0] } }
+      catch { return {} }
+    })())],
 
     Info(),