Use Mise instead of Volta (Volta is no longer maintained)

CONTRIBUTING.md

@@ -29,7 +29,10 @@ Hello! We’re delighted that you’re interested in contributing to **BSManager
 ### Before You Begin
 
 1. **[Fork the repository][fork]** and **clone** your fork locally.  
-2. **Install the required Node.js version** (we recommend using [Volta](https://volta.sh/) to manage Node versions).  
+2. **Install the required tools (Node, etc)** (we recommend using [mise](https://mise.jdx.dev/) to manage tool versions).
+   ```bash
+   mise install
+   ```
 3. **Install project dependencies**:
    ```bash
    npm install

mise.toml

@@ -0,0 +1,3 @@
+[tools]
+node = "24"
+rust = "1.93"

package.json

@@ -248,8 +248,5 @@
             ".erb/dll/**"
         ],
         "logLevel": "quiet"
-    },
-    "volta": {
-        "node": "24.11.1"
     }
 }