fix: add npm provenance package metadata

server/package.json

@@ -1,6 +1,16 @@
 {
   "name": "@paperclipai/server",
   "version": "0.3.1",
+  "license": "MIT",
+  "homepage": "https://github.com/paperclipai/paperclip",
+  "bugs": {
+    "url": "https://github.com/paperclipai/paperclip/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/paperclipai/paperclip",
+    "directory": "server"
+  },
   "type": "module",
   "exports": {
     ".": "./src/index.ts"