v2.3.0 - Highest Availability Selection & Quota Enhancements

Added

• Highest Availability Selection - Improved model rotation to select the candidate with the most remaining quota fraction instead of just the first available.
• Enhanced Quota Cache - Added refreshDate, quotaUsed, and human-readable summaries to the quota cache for better visibility in UIs.
• Manual Selection Support - Added quota_use_model and quota_auto_mode tools to allow users to lock a specific model while preserving the ability to auto-return to preferred models later.
• Auto-Return Logic - System now intelligently returns to the user's preferred model once its quota has refreshed, if not in manual override mode.

Fixed

• Model Name Translation - Refined patterns for Gemini 2.5, Gemini 1.5, Claude 3.5, and more to ensure consistent display names.