v0.4.1: Chrome cookie import, config.json, session persistence

- Add Chrome cookie importer (macOS Keychain AES-128-CBC decryption)
- Add ~/.config/browse/config.json (headless, fullscreen, stealth, preview defaults)
- Add ~/.config/browse/session.json (auto-save/restore cookies + localStorage)
- Auto-import from all browsers (Safari + Firefox + Chrome) on first launch
- Deduplicate cookies across browsers (domain+name+path key)
- Defaults: headed, fullscreen, stealth, preview all enabled
- Fix BigInt overflow for Chrome timestamps (CAST to TEXT in SQL)

src/index.ts

@@ -1,4 +1,17 @@
 export { ClaudeBrowser } from './browser.js';
+export { importChromeCookies, listChromeProfiles, type ChromeCookie } from './chrome.js';
+export {
+  loadConfig,
+  saveConfig,
+  loadSession,
+  saveSession,
+  clearSession,
+  importAllToSession,
+  getConfigPath,
+  getSessionPath,
+  type BrowseConfig,
+  type BrowseSession,
+} from './config.js';
 export { BrowserServer, startServer, type ServerOptions } from './server.js';
 export {
   createFavicon,