Inject globals into eval scope to fix undefined document error

src/duckai.ts

@@ -161,20 +161,17 @@ export class DuckAI {
       // Immortal DOM patches (already applied above) are good.
       
       // Execute script directly in the window context
-      // We wrap it in a try-catch block INSIDE the eval to capture script errors
-      const result = mockWindow.eval(`
-          try {
-              ${jsScript}
-          } catch(e) {
-              console.error("Script Eval Error:", e);
-              null;
-          }
-      `);
+      // Explicitly define globals for the script scope to prevent 'undefined' errors
+      const result = await mockWindow.eval(`
+          var window = this;
+          var document = this.document;
+          var navigator = this.navigator;
+          var screen = this.screen;
+          
+          ${jsScript}
+      `) as any;
       
       if (!result || !result.client_hashes) {
-        // If result is null, maybe the script put the result in a global variable?
-        // Sometimes DDG scripts do that. Let's check window.result or similar if needed.
-        // But for now, throw detailed error
         throw new Error("Script executed but returned invalid result (no client_hashes)");
       }