chore(branding): rebrand extension to g1nation & Antigravity Edition

- Updated publisher to g1nation.
- Removed all references to Jarvis and connectailab.
- Rewrote README.md to emphasize Personal Intelligence Layer for Antigravity & VS Code.
- Re-packaged v2.65.0 with new identifier (g1nation.astra).

package.json

@@ -1,9 +1,9 @@
 {
   "name": "astra",
   "displayName": "Astra",
-  "description": "A local Jarvis-style project operating assistant for VS Code. Connects memory, project context, tools, and a single thinking-partner voice.",
+  "description": "The personal intelligence layer for Antigravity and VS Code. A private cognitive partner for deep project context, memory, and proactive strategic decision-making.",
   "version": "2.65.0",
-  "publisher": "connectailab",
+  "publisher": "g1nation",
   "license": "MIT",
   "icon": "assets/icon.png",
   "repository": {