Update package.json for marketplace publishing - change publisher to 3DTek-xyz and add repository field

package.json

@@ -3,7 +3,11 @@
   "displayName": "HumanAgent MCP",
   "description": "MCP server for chatting with a human agent",
   "version": "0.0.1",
-  "publisher": "benharper",
+  "publisher": "3DTek-xyz",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/3DTek-xyz/HumanAgent-MCP.git"
+  },
   "engines": {
     "vscode": "^1.105.0"
   },