Modify GitHub handle and client contract address

Updated GitHub handle and added client contract address.

Author: martapiekarska

Allocators/rec4QAixytYzdFqM7.json

@@ -24,10 +24,10 @@
       "smart_contract_allocator"
     ],
     "github_handles": [
-      "https://github.com/vvkio"
+      "vvkio"
     ],
     "allocation_bookkeeping": "https://github.com/filplus-bookkeeping/web3mine-AG",
-    "client_contract_address": ""
+    "client_contract_address": "f410funbivj3ewd3mfqg7r5guajdmrkjp6gfkf44ojrq"
   },
   "history": {
     "Application Submitted": "2026-02-02T16:41:34.000Z",
@@ -46,4 +46,4 @@
     }
   ],
   "old_allocator_id": ""
-}
+}