feat: initialize FewLineSDK project with TypeScript setup

- Add package.json with dependencies and scripts for building and linting
- Create initial FewLineSDK class in src/index.ts
- Set up TypeScript configuration in tsconfig.json

package.json

@@ -0,0 +1,22 @@
+{
+  "name": "few-line-sdk",
+  "version": "0.1.0",
+  "description": "",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "scripts": {
+    "build": "tsc",
+    "lint": "eslint src --ext .ts"
+  },
+  "devDependencies": {
+    "@types/jest": "^29.0.0",
+    "@typescript-eslint/eslint-plugin": "^6.0.0",
+    "@typescript-eslint/parser": "^6.0.0",
+    "eslint": "^8.0.0",
+    "jest": "^29.0.0",
+    "typescript": "^5.0.0"
+  },
+  "dependencies": {
+    "axios": "^1.13.0"
+  }
+}