Gemini-Model does not work / update to 2.5-flash

[nabossha]

the currently hardcoded model does not seem to work anymore and it should either be:
gemini-2.0-flash-lite:generateContent or even better gemini-2.0-flash-lite:generateContent as 2.0-flash will be expiring March 31st 2026:
https://ai.google.dev/gemini-api/docs/models?hl=de#gemini-2.0-flash_1

or alternatively make the model configurable.

sitescore/Classes/Domain/Repository/Llm/GeminiRepository.php

Line 15 in fb55adc

private string $apiUrl = 'https://generativelanguage.googleapis.com/v1beta/models/';