Add repository field to @iscc/lib package.json for npm provenance

Author: CID Agent

crates/iscc-napi/package.json

@@ -2,6 +2,10 @@
   "name": "@iscc/lib",
   "version": "0.0.2",
   "license": "Apache-2.0",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/iscc/iscc-lib"
+  },
   "main": "index.js",
   "types": "index.d.ts",
   "files": [