Add gemini pro 06 05

[daniel-lxs]

Closes: #3008

Important

Add new Gemini models gemini-2.5-pro-preview-06-05 and gemini-2.5-pro-preview-06-05:thinking with configurations and UI support.

• Models:
  • Add gemini-2.5-pro-preview-06-05 and gemini-2.5-pro-preview-06-05:thinking to gemini.ts and vertex.ts with specific configurations including maxTokens, contextWindow, supportsImages, supportsPromptCache, and pricing details.
  • Update openrouter.ts to include new models in OPEN_ROUTER_PROMPT_CACHING_MODELS, OPEN_ROUTER_REASONING_BUDGET_MODELS, and OPEN_ROUTER_REQUIRED_REASONING_BUDGET_MODELS.
• UI:
  • Update ModelInfoView in ModelInfoView.tsx to handle new Gemini models for billing estimates and free requests.

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