fix(windows): resolve doctor-installed perl and quote perl path

Two related fixes for OpenSSL builds on Windows:

1. spc doctor installs Strawberry Perl under `pkgroot/strawberry-perl/`,
   but the validate() check only looks at the arch-specific native path
   (`strawberry-perl-x86_64-win`). When a user runs `spc doctor` to
   install perl, the subsequent build fails because the doctor's install
   layout isn't on the lookup list. Add it as a fallback before falling
   through to WindowsUtil::findCommand.

2. Wrap the resolved perl path in quote() when building the Configure
   command. WindowsUtil::findCommand can return a path containing spaces
   (e.g. `C:\Program Files\...`), which then splits the cmd.exe
   invocation. Quoting matches how every other interpolated path in this
   command is handled.

src/Package/Library/openssl.php

@@ -25,7 +25,12 @@ class openssl
         if (SystemTarget::getTargetOS() === 'Windows') {
             global $argv;
             $perl_path_native = PKG_ROOT_PATH . '\strawberry-perl-' . arch2gnu(php_uname('m')) . '-win\perl\bin\perl.exe';
-            $perl = file_exists($perl_path_native) ? ($perl_path_native) : WindowsUtil::findCommand('perl.exe');
+            $perl_path_doctor = PKG_ROOT_PATH . '\strawberry-perl\perl\bin\perl.exe';
+            $perl = match (true) {
+                file_exists($perl_path_native) => $perl_path_native,
+                file_exists($perl_path_doctor) => $perl_path_doctor,
+                default => WindowsUtil::findCommand('perl.exe'),
+            };
             if ($perl === null) {
                 throw new EnvironmentException(
                     'You need to install perl first!',
@@ -42,7 +47,7 @@ class openssl
         $perl = ApplicationContext::get('perl');
         $cmd = cmd()->cd($lib->getSourceDir())
             ->exec(
-                "{$perl} Configure zlib VC-WIN64A " .
+                quote($perl) . ' Configure zlib VC-WIN64A ' .
                 'no-shared ' .
                 '--prefix=' . quote($lib->getBuildRootPath()) . ' ' .
                 '--with-zlib-lib=' . quote($lib->getLibDir()) . ' ' .