Support 128k max tokens for openrouter and vertex thinking

[mrubens]

#1327 for OpenRouter and Vertex too @cte @monotykamary

This sure seems to imply that the max is 128k on Vertex (no mention of a beta).

---

Important

Increase maxTokens to 128,000 for anthropic/claude-3.7-sonnet:thinking in OpenRouter API and update tests accordingly.

• Behavior:
  • Increase maxTokens to 128,000 for anthropic/claude-3.7-sonnet:thinking in openrouter.ts and openrouter.test.ts.
• Tests:
  • Update OpenRouterHandler test in openrouter.test.ts to reflect new maxTokens limit.
• Implementation:
  • Modify getOpenRouterModels() in openrouter.ts to set maxTokens to 128,000 for anthropic/claude-3.7-sonnet:thinking.

^{This description was created by for 63cecf8. It will automatically update as commits are pushed.}

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