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e324170160
* fix(provider): resolve Tiingo security currency from countryCode Tiingo's search API never returns the priceCurrency field the code was reading, so currency detection silently failed. Currency is now derived from countryCode via the countries gem's ISO 4217 data, with a best-match tie-break for tickers that collide across countries so the currency shown in search results always matches what fetch_security_prices later returns. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * fix(provider): guard tiingo currency cache against non-US downgrade Addresses PR review feedback (jjmata): the per-ticker currency cache written in search_securities was unconditionally overwritten on every search, keyed only by ticker. A later search whose result set doesn't happen to include a ticker's US cross-listing could silently downgrade a previously-cached USD (the currency actually backing daily price data) to a foreign currency. Only overwrite when the current search's match is US, or nothing is cached yet. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>