Add AnyClip integration tools and extracted source code

- Add authentication scripts with SubtleCrypto password encryption
- Add sourcemap extraction pipeline (update-urls, download-sourcemaps, extract-sources)
- Add Playwright API interception script for monetization endpoints
- Document two-step auth flow with JWT tokens and dual cookies
- Move extracted source from root to anyclip/ directory
- Add project configuration (.env.example, .gitignore, CLAUDE.md)

anyclip/client/next.ts

@@ -0,0 +1,23 @@
+import './webpack'
+import '../lib/require-instrumentation-client'
+
+import { initialize, hydrate, version, router, emitter } from './'
+
+declare global {
+  interface Window {
+    next: any
+  }
+}
+
+window.next = {
+  version,
+  // router is initialized later so it has to be live-binded
+  get router() {
+    return router
+  },
+  emitter,
+}
+
+initialize({})
+  .then(() => hydrate())
+  .catch(console.error)