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/pages/_app.tsx

@@ -0,0 +1,46 @@
+import React from 'react'
+
+import type {
+  AppContextType,
+  AppInitialProps,
+  AppPropsType,
+  NextWebVitalsMetric,
+  AppType,
+} from '../shared/lib/utils'
+import type { Router } from '../client/router'
+
+import { loadGetInitialProps } from '../shared/lib/utils'
+
+export type { AppInitialProps, AppType }
+
+export type { NextWebVitalsMetric }
+
+export type AppContext = AppContextType<Router>
+
+export type AppProps<P = any> = AppPropsType<Router, P>
+
+/**
+ * `App` component is used for initialize of pages. It allows for overwriting and full control of the `page` initialization.
+ * This allows for keeping state between navigation, custom error handling, injecting additional data.
+ */
+async function appGetInitialProps({
+  Component,
+  ctx,
+}: AppContext): Promise<AppInitialProps> {
+  const pageProps = await loadGetInitialProps(Component, ctx)
+  return { pageProps }
+}
+
+export default class App<P = any, CP = {}, S = {}> extends React.Component<
+  P & AppProps<CP>,
+  S
+> {
+  static origGetInitialProps = appGetInitialProps
+  static getInitialProps = appGetInitialProps
+
+  render() {
+    const { Component, pageProps } = this.props as AppProps<CP>
+
+    return <Component {...pageProps} />
+  }
+}