fix(extension): restore AI Response Content capture by patching DOM extraction, CSP connect-src, and TS regex literal serialization

scratch_btn.py

@@ -0,0 +1,8 @@
+import json; d=json.load(open(r'C:\Users\Variet-Worker\.gemini\antigravity\bridge\deep-inspect-result.json', encoding='utf-8', errors='ignore')); print('Total Nodes:', len(d.get('nodes',[])));
+for n in d.get('nodes', []):
+  if 'agent' in n.get('label','').lower() or n.get('buttons'):
+    print(f"\n[Node] {n.get('label')}")
+    for b in n.get('buttons', []):
+      print(f"  BTN: '{b.get('text')}' class='{b.get('class')}' hidden={b.get('hidden')} disabled={b.get('disabled')}")
+    for b in n.get('roleBtns', []):
+      print(f"  ROLE-BTN: '{b.get('text')}'")