test: add comprehensive SDK unit tests (Node.js + Python)

sdk/node/package.json

@@ -12,12 +12,25 @@
       "types": "./dist/index.d.ts"
     }
   },
-  "files": ["dist"],
+  "files": [
+    "dist"
+  ],
   "scripts": {
     "build": "tsc && tsc --module commonjs --outDir dist/cjs && mv dist/cjs/index.js dist/index.cjs && rm -rf dist/cjs",
-    "prepublishOnly": "npm run build"
+    "prepublishOnly": "npm run build",
+    "test": "vitest run",
+    "test:watch": "vitest"
   },
-  "keywords": ["screenshot", "api", "webpage", "capture", "puppeteer", "headless", "eu", "gdpr"],
+  "keywords": [
+    "screenshot",
+    "api",
+    "webpage",
+    "capture",
+    "puppeteer",
+    "headless",
+    "eu",
+    "gdpr"
+  ],
   "author": "Cloonar Technologies GmbH",
   "license": "MIT",
   "homepage": "https://snapapi.eu",
@@ -29,6 +42,7 @@
     "node": ">=18"
   },
   "devDependencies": {
-    "typescript": "^5.0.0"
+    "typescript": "^5.0.0",
+    "vitest": "^4.0.18"
   }
 }