fix: update Antigravity User-Agent to 1.15.8 (#4111)

CHANGELOG.md

@@ -69,6 +69,7 @@ Status: stable.
 - Docs: keep docs header sticky so navbar stays visible while scrolling. (#2445) Thanks @chenyuan99.
 - Docs: update exe.dev install instructions. (#https://github.com/openclaw/openclaw/pull/3047) Thanks @zackerthescar.
 - Build: skip redundant UI install step in the Dockerfile. (#4584) Thanks @obviyus.
+- Antigravity: update User-Agent to 1.15.8 to fix "no longer supported" errors. (#4111)
 ### Breaking
 - **BREAKING:** Gateway auth mode "none" is removed; gateway now requires token/password (Tailscale Serve identity still allowed).
 

extensions/google-antigravity-auth/index.ts

@@ -230,7 +230,7 @@ async function fetchProjectId(accessToken: string): Promise<string> {
   const headers = {
     Authorization: `Bearer ${accessToken}`,
     "Content-Type": "application/json",
-    "User-Agent": "google-api-nodejs-client/9.15.1",
+    "User-Agent": "antigravity/1.15.8 linux/arm64",
     "X-Goog-Api-Client": "google-cloud-sdk vscode_cloudshelleditor/0.1",
     "Client-Metadata": JSON.stringify({
       ideType: "IDE_UNSPECIFIED",

src/infra/provider-usage.fetch.antigravity.ts

@@ -174,7 +174,7 @@ export async function fetchAntigravityUsage(
   const headers: Record<string, string> = {
     Authorization: `Bearer ${token}`,
     "Content-Type": "application/json",
-    "User-Agent": "antigravity",
+    "User-Agent": "antigravity/1.15.8 linux/arm64",
     "X-Goog-Api-Client": "google-cloud-sdk vscode_cloudshelleditor/0.1",
   };