[ERROR] Error processing request in chat_with_text_endpoint after 1.84s: <ClientResponse(https://us-central1-aiplatform.googleapis.com/v1beta1/projects/chargemeter/locations/us-central1/publishers/google/models/gemini-2.5-flash-lite:generateContent) [400 Bad Request]> chargemeter-ai-backend | <CIMultiDictProxy('Vary': 'Origin', 'Vary': 'X-Origin', 'Vary': 'Referer', 'Content-Type': 'application/json; charset=UTF-8', 'Content-Encoding': 'gzip', 'Date': 'Tue, 23 Sep 2025 12:09:14 GMT', 'Server': 'scaffolding on HTTPServer2', 'X-XSS-Protection': '0', 'X-Frame-Options': 'SAMEORIGIN', 'X-Content-Type-Options': 'nosniff', 'Alt-Svc': 'h3=":443"; ma=2592000,h3-29=":443"; ma=2592000', 'Transfer-Encoding': 'chunked')>
resolve 400 bad request issue.