Use local svgo.cmd wrapper binary

Switch SVG optimizer resolution from bin/svgo-cli.exe to bin/svgo.cmd.

Update unit tests to validate the new local binary path behavior.

Co-Authored-By: Abacus.AI CLI <agent@abacus.ai>

bin/svgo-client/node_modules/css-tree/lib/version.js

@@ -0,0 +1,5 @@
+import { createRequire } from 'module';
+
+const require = createRequire(import.meta.url);
+
+export const { version } = require('../package.json');