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/add-base-path.ts

@@ -0,0 +1,12 @@
+import { addPathPrefix } from '../shared/lib/router/utils/add-path-prefix'
+import { normalizePathTrailingSlash } from './normalize-trailing-slash'
+
+const basePath = (process.env.__NEXT_ROUTER_BASEPATH as string) || ''
+
+export function addBasePath(path: string, required?: boolean): string {
+  return normalizePathTrailingSlash(
+    process.env.__NEXT_MANUAL_CLIENT_BASE_PATH && !required
+      ? path
+      : addPathPrefix(path, basePath)
+  )
+}