# Track Specification: Cache Analytics Display (cache_analytics_20260306)

## Overview
Gemini cache hit/miss visualization, memory usage, TTL status display. Uses existing ai_client.get_gemini_cache_stats() which is not displayed in GUI.

## Architectural Constraints
- **Non-Blocking**: Cache queries MUST NOT block UI.
- **Efficient Polling**: Cache stats SHOULD be polled, not pushed.

## Functional Requirements
- **Cache Status**: Display active cache count and size.
- **Hit/Miss Ratio**: Calculate and display cache efficiency.
- **TTL Countdown**: Show time until next cache rebuild.
- **Manual Clear**: Button to manually clear cache.

## Acceptance Criteria
- [ ] Cache panel displays in GUI.
- [ ] Hit/miss ratio calculated correctly.
- [ ] TTL countdown visible.
- [ ] Manual clear button works.
- [ ] Uses existing get_gemini_cache_stats().