docs(go): update googlegenai plugin

[hugoaguirre]

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[gemini-code-assist]

Summary of Changes

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This pull request significantly updates the documentation for the googlegenai plugin, primarily enhancing the Go language section with extensive new content. The changes provide clearer guidance on setup, configuration for both Google AI and Vertex AI, and detailed usage examples for a broader array of generative AI capabilities, including advanced model features, multimodal interactions, and video generation. The Python documentation was also refined for conciseness.

Highlights

• Go Documentation Overhaul: The Go language section of the googlegenai plugin documentation was completely rewritten to provide a more comprehensive and up-to-date guide on its capabilities.
• Dual Backend Configuration: New instructions were added for configuring the plugin with both Google AI (Gemini API) and Vertex AI, including detailed authentication steps for each backend.
• Expanded Model Support and Features: The documentation now lists a wider range of available models, including Gemini 3 Series, Gemini 2.5 Series, and Gemma 3 Series, and introduces new sections covering structured output, thinking and reasoning configurations, context caching, and various grounding options (Google Search, Google Maps).
• Enhanced Multimodal and Video Capabilities: Detailed examples and explanations were added for multimodal input (video, image, audio, PDF understanding) and advanced video generation using Veo models, including backend-specific considerations, output formats, and safety filtering.
• Python Documentation Streamlined: The Python language section was updated and simplified, focusing on core usage examples for text generation, embedding, and image generation.
• Configuration Example Update: The thinkingLevel configuration example was updated to include 'MEDIUM' as an option and removed the includeThoughts field for clarity.

Changelog

• src/content/docs/docs/integrations/google-genai.mdx
  • Updated the thinkingLevel configuration example to include "MEDIUM" and removed the includeThoughts field.
  • Rewrote the Go language documentation to cover installation, dual backend configuration (Google AI and Vertex AI), authentication, expanded model lists (Gemini 3, Gemini 2.5, Gemma 3), basic usage, model referencing, structured output with schema limitations, thinking/reasoning configurations, context caching, safety settings, Google Search/Maps grounding, code execution, text/image generation, and multimodal input (video, image, audio, PDF).
  • Expanded the Video Models (Veo) section with backend-specific considerations, output formats, safety filtering, text-to-video, image-to-video, video-to-video, and detailed configuration options.
  • Updated the Speech Models section to clarify usage with audio output modalities.
  • Simplified the Python language documentation to focus on basic usage for text generation, embedding, and image generation, removing some previously detailed sections.

Activity

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Code Review

This pull request provides a comprehensive update to the Go documentation for the googlegenai plugin, bringing it in line with the documentation for other languages. The changes are extensive and well-structured. I've identified a few minor issues in the new documentation, such as incorrect markdown syntax and an undefined variable in a code sample. I also noticed a minor inaccuracy in a comment in the JavaScript documentation. More importantly, it appears that the detailed Python documentation has been accidentally removed or significantly shortened, which I've flagged as a high-priority issue to review.