feat: initialize project with package.json and tsconfig.json

- Added package.json for project dependencies and scripts
- Included TypeScript configuration in tsconfig.json

assets/manifest.json

@@ -0,0 +1,32 @@
+{
+  "dxt_version": "0.1",
+  "name": "siwat-system-portal",
+  "version": "1.0.0",
+  "description": "Siwat System MCP Extension for Siwat System API",
+  "author": {
+    "name": "Siwat Sirichai"
+  },
+  "server": {
+    "type": "node",
+    "entry_point": "index.js",
+    "mcp_config": {
+      "command": "node",
+      "args": [
+        "${__dirname}/index.js",
+        "--header",
+        "x-api-key:${user_config.api_key}",
+        "https://api.siwatsystem.com/api/mcp"
+      ],
+      "env": {}
+    }
+  },
+  "user_config": {
+    "api_key": {
+      "type": "string",
+      "title": "API Key",
+      "description": "Your Siwat System API key for authentication",
+      "sensitive": true,
+      "required": true
+    }
+  }
+}