chore: merge release v1.31.1 to main#5424

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Jacksunwei wants to merge 9 commits intomainfrom

release/v1.31.1

Commits on Apr 16, 2026

chore: default to info tab when graph is not available

wyf7107
authored and
github-actions[bot]
committed

Commits on Apr 17, 2026

Commits on Apr 20, 2026

fix: Disable bound token for mcp_tool

google-genai-bot
authored and
sasha-gitg
committed
fix: web oauth flow and trace view

wyf7107
authored and
sasha-gitg
committed
fix: bump Vertex SDK version
sasha-gitg
committed

Commits on Apr 21, 2026