fix(types): clean type fixes across 92 files

Apply proper TypeScript type corrections without any unsafe casts:
- Fix unknown/never/{} types from decompilation
- Correct function signatures and parameter types
- Add missing type declarations and interfaces
- Fix Ink component prop types
- Update API client/provider type annotations

Test files with mock data casts are included as-is (acceptable pattern).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/@ant/computer-use-swift/src/backends/darwin.ts

@@ -14,6 +14,17 @@ import type {
   SwiftBackend, WindowDisplayInfo,
 } from '../types.js'
 
+export type {
+  DisplayGeometry,
+  PrepareDisplayResult,
+  AppInfo,
+  InstalledApp,
+  RunningApp,
+  ScreenshotResult,
+  ResolvePrepareCaptureResult,
+  WindowDisplayInfo,
+} from '../types.js'
+
 // ---------------------------------------------------------------------------
 // Helpers
 // ---------------------------------------------------------------------------