feat: add rename functionality to file editor

Add ability to rename files and folders through the context menu:
- Add rename_path Tauri command in backend
- Add renamePath function to editor store that updates open tabs
- Add rename option to context menu with pencil icon
- Update InputDialog to support initial value for rename operations

src-tauri/src/commands.rs

@@ -535,6 +535,27 @@ pub async fn delete_directory(path: String) -> Result<(), String> {
     Ok(())
 }
 
+#[tauri::command]
+pub async fn rename_path(old_path: String, new_path: String) -> Result<(), String> {
+    use std::fs;
+    use std::path::Path;
+
+    let old = Path::new(&old_path);
+    let new = Path::new(&new_path);
+
+    if !old.exists() {
+        return Err("Path does not exist".to_string());
+    }
+
+    if new.exists() {
+        return Err("Destination already exists".to_string());
+    }
+
+    fs::rename(old, new).map_err(|e| format!("Failed to rename: {}", e))?;
+
+    Ok(())
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

src-tauri/src/lib.rs

@@ -158,6 +158,7 @@ pub fn run() {
             create_directory,
             delete_file,
             delete_directory,
+            rename_path,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");