subh05sus pushed a change to main that replaces the old GOOGLE_GEMINI_API_KEY env var with GOOGLE_API_KEY across all documentation (README, SETUP, testing guides) and in the search API code for embeddings, ensuring naming consistency with the Google Generative AI integration.

`GOOGLE_GEMINI_API_KEY` environment variable to `GOOGLE_API_KEY` across documentation. - subh05sus/cosmyc-ai