fix: Handle empty listingsSample in financials

feat: Migrate to Vite v7 and update build configuration

feat(gemini): Improve prompt and use env for model

feat: Remove geolocation permission from metadata

feat: Add country selection to vehicle comparison

feat: Add main application entry point script

feat: Update Gemini model and dependencies

docs: Update README with project description

feat: Initialize AutoArena AI project structure

Initial commit