Browser tools: full accessibility snapshot, trusted input, dialogs, evaluate, and tab controls (#1881)

* feat(browser): replace flat snapshot with ARIA tree and page-side refs

* feat(browser): trusted CDP input with actionability waits

* feat(browser): auto-handle javascript dialogs

* feat(browser): add browser_evaluate

* feat(browser): add scroll, resize, and close_tab tools

* fix(browser): review fixes for snapshot/input/dialog seams

* fix(browser): address review findings on dialog capture, truncation, and keypress targets

* fix(harness): drop resize check that cannot run under parked compositor surfaces

* fix(browser): second review round — snapshot fidelity, key input, dialog scoping

packages/desktop/src/main.ts

@@ -54,6 +54,7 @@ import {
   listRegisteredPaseoBrowserIds,
   readBrowserIdFromWebviewAttach,
   registerBrowserWebviewNavigationGuards,
+  unregisterPaseoBrowser,
   registerPaseoBrowserWorkspace,
   registerPaseoBrowserWebContents,
   setWorkspaceActivePaseoBrowserId,
@@ -328,6 +329,12 @@ ipcMain.handle("paseo:browser:register-workspace-browser", (_event, rawInput: un
   }
 });
 
+ipcMain.handle("paseo:browser:unregister-workspace-browser", (_event, browserId: unknown) => {
+  if (typeof browserId === "string" && browserId.trim().length > 0) {
+    unregisterPaseoBrowser(browserId.trim());
+  }
+});
+
 ipcMain.handle("paseo:browser:set-workspace-active-browser", (_event, rawInput: unknown) => {
   const input = readActiveBrowserInput(rawInput);
   if (input) {