v0.3.1-beta.1

Pre-release for testing.

Currency fixes

• LSE equities quoted in pence (GBp) now show correct values in GBP/EUR — previously they were mis-converted. GBP-quoted funds are unaffected (the integration keys off the currency code, not the .L suffix).
• Exchange-rate symbols (e.g. GBPPLN=X, EURRUB=X, RUB=X) are auto-detected and never converted.

New

• RAW display option: shows the raw value with the asset native currency code, no conversion.
• Per-asset display-currency override in the card editor — each tile can override the card default (resolution order: override > FX auto-detect > card default).

Internal

• Currency logic extracted to src/currency.ts with 26 vitest unit tests; new editor strings localized across all 20 locales.