Reverts this week: 2

• Alex forwards every Pistacio invoice to his tax advisor in Munich. The advisor wanted DATEV Buchungsstapel CSV plus a Belegtransfer ZIP — not PDFs. Shipped the German tax-advisor export so she could stop being her own data converter.
• Three places in the app held the same Company Details and quietly disagreed about which one was canonical. Ema kept finding mismatches on invoices. Collapsed them into one panel that feeds the invoice issuer block. Three sources of truth had become three sources of bugs.