docs: document COT Index, caching, CLI, and retry for 0.2.0 - COTAnalysis: cot_index/extremes/long_short_ratios/percentile_rank/wow_change - Caching: memory + disk backends, [cache] extra, key derivation - New CLI page; linked from Home and sidebar - COTClient/COTQuery: cache + retry/backoff params; Installation requirements - Common-Patterns, Troubleshooting, Quick-Start, Changelog refreshed

victorKariuki committed Jun 20, 2026