fix(build): restore polyfill shims for shared folder imports

web/src/polyfills/buffer-shim.ts

@@ -0,0 +1,4 @@
+// Buffer polyfill shim for vite-plugin-node-polyfills
+import { Buffer } from 'buffer';
+export { Buffer };
+export default Buffer;

web/src/polyfills/global-shim.ts

@@ -0,0 +1,2 @@
+// Global polyfill shim for vite-plugin-node-polyfills
+export default typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : {};

web/src/polyfills/process-shim.ts

@@ -0,0 +1,9 @@
+// Process polyfill shim for vite-plugin-node-polyfills
+const processShim = {
+  env: {},
+  browser: true,
+  version: '',
+  versions: {},
+};
+
+export default processShim;

web/vite.config.ts

@@ -50,6 +50,10 @@ export default defineConfig(() => ({
       "@local/types": path.resolve(__dirname, "../shared/types"),
       "@pezkuwi/components": path.resolve(__dirname, "../shared/components"),
       "@shared": path.resolve(__dirname, "../shared"),
+      // Node polyfill shims for shared folder (outside web workspace)
+      'vite-plugin-node-polyfills/shims/buffer': path.resolve(__dirname, './src/polyfills/buffer-shim.ts'),
+      'vite-plugin-node-polyfills/shims/global': path.resolve(__dirname, './src/polyfills/global-shim.ts'),
+      'vite-plugin-node-polyfills/shims/process': path.resolve(__dirname, './src/polyfills/process-shim.ts'),
     },
     dedupe: ['react', 'lucide-react', 'sonner', '@pezkuwi/util-crypto', '@pezkuwi/util', '@pezkuwi/api', '@pezkuwi/extension-dapp', '@pezkuwi/keyring'],
   },