feat(antigravity,gemini): add Gemini 3.8 Flash support and bump IDE fingerprint to 2.11.0

Co-authored-by: Schnee111 <daffamaarif.dev@gmail.com>
Co-authored-by: AhooraZen <ahoora935137@gmail.com>
Co-authored-by: anojndr <anojndr@gmail.com>
Co-authored-by: Emirhan <emirhan551952@gmail.com>

cli/src/cli/menus/providers.js

@@ -53,6 +53,9 @@ const PROVIDER_MODELS = {
     { id: "glm-4.7" },
   ],
   ag: [
+    { id: "gemini-3.8-flash-high" },
+    { id: "gemini-3.8-flash-medium" },
+    { id: "gemini-3.8-flash-low" },
     { id: "gemini-3.7-flash-high" },
     { id: "gemini-3.7-flash-medium" },
     { id: "gemini-3.7-flash-low" },
@@ -101,6 +104,8 @@ const PROVIDER_MODELS = {
     { id: "claude-3-5-sonnet-20241022" },
   ],
   gemini: [
+    { id: "gemini-3.8-flash" },
+    { id: "gemini-3.7-flash" },
     { id: "gemini-3.6-flash" },
     { id: "gemini-3.5-flash-lite" },
     { id: "gemini-3-pro-preview" },