feat(wallet): add encrypted local vault runtime

src-tauri/src/main.rs

@@ -1,7 +1,9 @@
 use rabby_core::{
     demo_dashboard, wallet_feature_summary, WalletDashboard, WalletFeatureStatus, Workspace,
 };
+use rabby_runtime::wallet_vault::{EncryptedWalletVault, WalletVaultStatus};
 use serde::Serialize;
+use std::path::PathBuf;
 
 #[derive(Serialize)]
 struct FeatureRow {
@@ -41,13 +43,55 @@ fn wallet_dashboard() -> WalletDashboard {
     demo_dashboard()
 }
 
+#[tauri::command]
+fn save_demo_wallet_vault(
+    passphrase: String,
+    path: Option<String>,
+) -> Result<WalletVaultStatus, String> {
+    let vault_path = resolve_vault_path(path);
+    EncryptedWalletVault::save_dashboard(&vault_path, &demo_dashboard(), &passphrase)
+        .map_err(|err| err.to_string())
+}
+
+#[tauri::command]
+fn load_wallet_vault(path: String, passphrase: String) -> Result<WalletDashboard, String> {
+    EncryptedWalletVault::load_dashboard(path, &passphrase).map_err(|err| err.to_string())
+}
+
+fn resolve_vault_path(path: Option<String>) -> PathBuf {
+    path.map(PathBuf::from)
+        .unwrap_or_else(|| std::env::temp_dir().join("rabby-demo-wallet-vault.json"))
+}
+
 fn main() {
     tauri::Builder::default()
         .invoke_handler(tauri::generate_handler![
             workspace_summary,
             wallet_mvp_summary,
-            wallet_dashboard
+            wallet_dashboard,
+            save_demo_wallet_vault,
+            load_wallet_vault
         ])
         .run(tauri::generate_context!())
         .expect("failed to run Rabby Tauri application");
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn default_vault_path_has_stable_file_name() {
+        let path = resolve_vault_path(None);
+        assert_eq!(
+            path.file_name().and_then(|value| value.to_str()),
+            Some("rabby-demo-wallet-vault.json")
+        );
+    }
+
+    #[test]
+    fn explicit_vault_path_is_preserved() {
+        let path = resolve_vault_path(Some("/tmp/custom-rabby-vault.json".to_string()));
+        assert_eq!(path, PathBuf::from("/tmp/custom-rabby-vault.json"));
+    }
+}