Install Plugin from ZIP

POST /api/plugins/install/zip
Content-Type: multipart/form-data

{
  "status": 200,
  "message": "Plugin installed",
  "data": {
    "history": 12345,
    "pluginId": "com.example.myplugin",
    "pluginName": "My Custom Plugin",
    "totalFiles": 15,
    "successCount": 14,
    "failedCount": 1
  }
}

{
  "status": 400,
  "error": "Plugin file (zip) is required"
}

my-plugin/
├── bshplugin.json             # Plugin metadata (required)
├── BshEntities/               # Entity definitions
│   ├── __manifest__.json
│   └── MyEntity.json
├── BshSchemas/                # Schema definitions
│   ├── __manifest__.json
│   └── MyEntity.json
└── MyEntity/                  # Data files for MyEntity
    ├── __manifest__.json
    └── data.json

{
  "id": "com.example.myplugin",
  "name": "My Custom Plugin",
  "version": "1.0.0",
  "description": "A custom plugin for BSH Engine",
  "author": "Your Name"
}