feat: séparer vaults et dirs dans la config — type VAULT vs DIR

- AppConfig: ajout dirs: Vec<DirConfig> distinct de vaults: Vec<VaultConfig>
- spawn_backend: passe VAULT_N_* et DIR_N_* séparément (backend les supporte déjà)
- Config par défaut: 'Bruno' → %USERPROFILE% (type DIR), 'Obsidian' → voute_obsidian (type VAULT)
- Commandes: add_dir, remove_dir, list_dirs

desktop/src/main.rs

@@ -22,10 +22,17 @@ struct VaultConfig {
     path: String,
 }
 
+#[derive(Debug, Serialize, Deserialize, Clone)]
+struct DirConfig {
+    name: String,
+    path: String,
+}
+
 #[derive(Debug, Serialize, Deserialize, Clone)]
 struct AppConfig {
     vault_path: Option<String>,
     vaults: Vec<VaultConfig>,
+    dirs: Vec<DirConfig>,
     window_x: Option<f64>,
     window_y: Option<f64>,
     window_width: Option<f64>,
@@ -37,6 +44,7 @@ impl Default for AppConfig {
         Self {
             vault_path: None,
             vaults: Vec::new(),
+            dirs: Vec::new(),
             window_x: None,
             window_y: None,
             window_width: Some(1200.0),
@@ -135,13 +143,18 @@ fn spawn_backend(exe_dir: &PathBuf) -> Result<Child, String> {
     cmd.current_dir(&data_dir)
         .env("PYTHONPATH", exe_dir);
 
-    // Pass vault config as env vars (VAULT_1_NAME, VAULT_1_PATH, etc.)
+    // Pass vault config as env vars (VAULT_N_NAME, VAULT_N_PATH, DIR_N_NAME, DIR_N_PATH)
     let config = load_config();
     for (i, vault) in config.vaults.iter().enumerate() {
         let n = i + 1;
         cmd.env(format!("VAULT_{}_NAME", n), &vault.name);
         cmd.env(format!("VAULT_{}_PATH", n), &vault.path);
     }
+    for (i, dir) in config.dirs.iter().enumerate() {
+        let n = i + 1;
+        cmd.env(format!("DIR_{}_NAME", n), &dir.name);
+        cmd.env(format!("DIR_{}_PATH", n), &dir.path);
+    }
 
     let child = cmd
         .args([
@@ -278,6 +291,30 @@ fn list_vaults() -> Vec<VaultConfig> {
     load_config().vaults
 }
 
+#[tauri::command]
+fn add_dir(name: String, path: String) -> Result<(), String> {
+    let mut config = load_config();
+    config.dirs.retain(|d| d.name != name);
+    config.dirs.push(DirConfig { name: name.clone(), path });
+    save_config(&config);
+    info!("Dir added: {} — restart backend to apply", name);
+    Ok(())
+}
+
+#[tauri::command]
+fn remove_dir(name: String) -> Result<(), String> {
+    let mut config = load_config();
+    config.dirs.retain(|d| d.name != name);
+    save_config(&config);
+    info!("Dir removed: {} — restart backend to apply", name);
+    Ok(())
+}
+
+#[tauri::command]
+fn list_dirs() -> Vec<DirConfig> {
+    load_config().dirs
+}
+
 #[tauri::command]
 fn restart_backend(state: tauri::State<BackendProcess>) -> Result<String, String> {
     let mut restarting = state.restarting.lock().map_err(|e| e.to_string())?;
@@ -405,11 +442,13 @@ fn main() {
             }
         }
 
-        config.vaults = vec![
-            VaultConfig {
-                name: "Dossier".to_string(),
+        config.dirs = vec![
+            DirConfig {
+                name: "Bruno".to_string(),
                 path: userprofile.clone(),
             },
+        ];
+        config.vaults = vec![
             VaultConfig {
                 name: "Obsidian".to_string(),
                 path: vault_dir.to_string_lossy().to_string(),
@@ -469,6 +508,9 @@ fn main() {
             add_vault,
             remove_vault,
             list_vaults,
+            add_dir,
+            remove_dir,
+            list_dirs,
         ])
         .setup(move |app| {
             // Restore window position/size