fix: add tslib dev dependency to resolve rollup build error

- Added tslib ^2.8.1 as dev dependency
- Fixes @rollup/plugin-typescript error: Could not find module 'tslib'
- Verified build pipeline works correctly (format, lint, test, package)

package-lock.json

@@ -35,6 +35,7 @@
         "prettier": "^3.5.3",
         "rollup": "^4.41.1",
         "ts-node": "^10.9.2",
+        "tslib": "^2.8.1",
         "typescript": "^5.8.3",
         "vite": "^6.3.5",
         "vitest": "^3.1.2"

package.json

@@ -60,6 +60,7 @@
     "prettier": "^3.5.3",
     "rollup": "^4.41.1",
     "ts-node": "^10.9.2",
+    "tslib": "^2.8.1",
     "typescript": "^5.8.3",
     "vite": "^6.3.5",
     "vitest": "^3.1.2"