Don't swallow fetch TypeError as CORS in non-browser environments (#1595)

Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
Co-authored-by: Felix Weinberger <fweinberger@anthropic.com>

packages/client/tsdown.config.ts

@@ -3,7 +3,7 @@ import { defineConfig } from 'tsdown';
 export default defineConfig({
     // 1. Entry Points
     //    Directly matches package.json include/exclude globs
-    entry: ['src/index.ts', 'src/shimsNode.ts', 'src/shimsWorkerd.ts'],
+    entry: ['src/index.ts', 'src/shimsNode.ts', 'src/shimsWorkerd.ts', 'src/shimsBrowser.ts'],
 
     // 2. Output Configuration
     format: ['esm'],