chore: release 0.31.0 (#2865)

Release-As: 0.31.0

Author: Yuan325

.hugo/hugo.cloudflare.toml

@@ -76,6 +76,10 @@ ignoreFiles = ["quickstart/shared", "quickstart/python", "quickstart/js", "quick
 # Add a new version block here before every release
 # The order of versions in this file is mirrored into the dropdown
 
+[[params.versions]]
+  version = "v0.31.0"
+  url = "https://mcp-toolbox.dev/v0.31.0/"
+
 [[params.versions]]
   version = "v0.30.0"
   url = "https://mcp-toolbox.dev/v0.30.0/"

.hugo/hugo.toml

@@ -61,6 +61,10 @@ ignoreFiles = ["quickstart/shared", "quickstart/python", "quickstart/js", "quick
 # Add a new version block here before every release
 # The order of versions in this file is mirrored into the dropdown
 
+[[params.versions]]
+  version = "v0.31.0"
+  url = "https://googleapis.github.io/genai-toolbox/v0.31.0/"
+
 [[params.versions]]
   version = "v0.30.0"
   url = "https://googleapis.github.io/genai-toolbox/v0.30.0/"