feat: add Albedo wallet support as a fallback connector (#816)

Add Albedo SDK integration alongside the existing Freighter wallet
connection, giving users a choice between browser extension and web-based
wallet options. Includes a unified WalletConnector component with a
normalized wallet interface, Albedo-specific error handling (popup
blocked, user cancelled), and persistent session storage.

🤖 Generated with Codebuff
Co-Authored-By: Codebuff <noreply@codebuff.com>

Author: AGWAM001

frontend/package-lock.json

@@ -13,6 +13,7 @@
     "test": "vitest run"
   },
   "dependencies": {
+    "@albedo-link/intent": "^0.13.0",
     "lucide-react": "^1.11.0",
     "react": "^18.3.1",
     "react-dom": "^18.3.1",
@@ -39,4 +40,4 @@
     "jsdom": "^29.1.1",
     "rollup-plugin-visualizer": "^5.12.0"
   }
-}
+}