chore: remove branding references and update author metadata

README.md

@@ -109,4 +109,4 @@ Checks if the system should run in simulated demo mode.
 | **OpenWeather** | Dashboard Weather Widget | `VITE_OPENWEATHER_API_KEY` |
 
 ---
-**Created by Antigravity for Plano Realty CRM**
+**Created by Satyam-Rastogi for Plano Realty CRM**

package.json

@@ -2,6 +2,7 @@
   "name": "plano-realty-crm",
   "private": true,
   "version": "0.0.0",
+  "author": "Satyam-Rastogi",
   "type": "module",
   "scripts": {
     "dev": "vite",
@@ -38,4 +39,4 @@
     "globals": "^16.5.0",
     "vite": "^7.2.4"
   }
-}
+}