feat(pitch-deck): translate financial plan row labels when lang=en

- Add ROW_LABEL_MAP (DE→EN) covering GuV, Liquidität, Kunden, Betriebliche Aufwendungen rows
- Add FORMULA_TOOLTIPS_EN with English tooltip text for all formula-driven rows
- Add MONTH_LABELS_EN (Mrz→Mar, Mai→May, Okt→Oct)
- LabelWithTooltip now accepts `de` flag, translates display text and tooltip accordingly
- Month column headers switch between DE/EN month abbreviations
- Falls back to original German label for any row not in the map

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

pitch-deck/components/slides/FinanzplanSlide.datagrid.tsx

@@ -1,18 +1,19 @@
 'use client'
 
 import {
-  SheetRow, MONTH_LABELS, FORMULA_TOOLTIPS,
+  SheetRow, MONTH_LABELS, MONTH_LABELS_EN, FORMULA_TOOLTIPS, FORMULA_TOOLTIPS_EN, ROW_LABEL_MAP,
   getLabel, getValues, formatCell,
 } from './FinanzplanSlide.helpers'
 
 /* ── Tooltip for formula-linked labels ── */
 
-function LabelWithTooltip({ label }: { label: string }) {
-  const tooltip = FORMULA_TOOLTIPS[label]
-  if (!tooltip) return <span>{label}</span>
+function LabelWithTooltip({ label, de }: { label: string; de: boolean }) {
+  const displayLabel = de ? label : (ROW_LABEL_MAP[label] ?? label)
+  const tooltip = de ? FORMULA_TOOLTIPS[label] : (FORMULA_TOOLTIPS_EN[label] ?? FORMULA_TOOLTIPS[label])
+  if (!tooltip) return <span>{displayLabel}</span>
   return (
     <span className="group relative cursor-help">
-      {label}
+      {displayLabel}
       <span className="invisible group-hover:visible absolute left-0 top-full mt-1 z-50 bg-slate-800 border border-white/10 text-[9px] text-white/70 px-2 py-1 rounded shadow-lg whitespace-nowrap">
         {tooltip}
       </span>
@@ -51,7 +52,7 @@ export function GuvTable({ rows, de }: GuvTableProps) {
           return (
             <tr key={row.id} className={`${isMajorSum ? 'border-t-2 border-t-white/20 border-b border-b-white/[0.05] bg-white/[0.05]' : isMinorSum ? 'border-t border-t-white/10 border-b border-b-white/[0.03] bg-white/[0.03]' : 'border-b border-white/[0.03]'} hover:bg-white/[0.02]`}>
               <td className={`py-1.5 px-2 sticky left-0 bg-slate-900/90 backdrop-blur ${isMajorSum ? 'font-bold text-white text-xs' : isMinorSum ? 'font-semibold text-white/80' : 'text-white/60'}`}>
-                <LabelWithTooltip label={label} />
+                <LabelWithTooltip label={label} de={de} />
               </td>
               {[2026, 2027, 2028, 2029, 2030].map(y => {
                 const v = values[`y${y}`] || 0
@@ -195,7 +196,7 @@ export function MonthlyGrid({ rows, activeSheet, de, yearOffset, openCats, toggl
               <th className="text-right py-1.5 px-2 text-white/60 font-medium min-w-[70px]">
                 {currentYear}
               </th>
-              {MONTH_LABELS.map((label, idx) => (
+              {(de ? MONTH_LABELS : MONTH_LABELS_EN).map((label, idx) => (
                 <th key={idx} className="text-right py-1.5 px-1.5 text-white/50 font-normal min-w-[55px]">
                   {label}
                 </th>
@@ -241,7 +242,7 @@ export function MonthlyGrid({ rows, activeSheet, de, yearOffset, openCats, toggl
                 <div className="flex items-center gap-1">
                   {isCatHeader && <span className="text-[10px] text-indigo-400 w-3 shrink-0">{isCatOpen ? '▾' : '▸'}</span>}
                   {isEditable && <span className="w-1 h-1 rounded-full bg-indigo-400 flex-shrink-0" />}
-                  <span className="truncate"><LabelWithTooltip label={label} /></span>
+                  <span className="truncate"><LabelWithTooltip label={label} de={de} /></span>
                   {row.position && <span className="text-white/50 ml-1">({row.position})</span>}
                 </div>
               </td>

pitch-deck/components/slides/FinanzplanSlide.helpers.ts

@@ -37,10 +37,86 @@ export const MONTH_LABELS = [
   'Jul', 'Aug', 'Sep', 'Okt', 'Nov', 'Dez',
 ]
 
+export const MONTH_LABELS_EN = [
+  'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
+  'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec',
+]
+
 export function getLabel(row: SheetRow): string {
   return row.row_label || row.person_name || row.item_name || '—'
 }
 
+// German → English row label translations
+export const ROW_LABEL_MAP: Record<string, string> = {
+  // GuV / P&L
+  'Umsatzerlöse': 'Revenue',
+  'Materialaufwand': 'Cost of Materials',
+  'Material-/Wareneinsatz': 'Materials / COGS',
+  'Fremdleistungen': 'External Services',
+  'Rohertrag': 'Gross Profit',
+  'Rohergebnis': 'Gross Result',
+  'Gesamtleistung': 'Total Output',
+  'Personalkosten': 'Personnel Costs',
+  'Abschreibungen': 'Depreciation',
+  'Betriebliche Aufwendungen': 'Operating Expenses',
+  'Sonstige betriebliche Aufwendungen': 'Other Operating Expenses',
+  'EBIT': 'EBIT',
+  'Betriebsergebnis': 'Operating Result',
+  'Zinsergebnis': 'Net Interest',
+  'Zinsaufwand': 'Interest Expense',
+  'Zinsertrag': 'Interest Income',
+  'Ergebnis vor Steuern': 'Earnings Before Tax',
+  'EBT': 'EBT',
+  'Gewerbesteuer': 'Trade Tax',
+  'Körperschaftsteuer': 'Corporate Tax',
+  'Steuern gesamt': 'Total Taxes',
+  'Steuern': 'Taxes',
+  'Jahresüberschuss': 'Net Income',
+  'Jahresfehlbetrag': 'Net Loss',
+  'Ergebnis nach Steuern': 'Net Result',
+  // Liquidität
+  'Einzahlungen': 'Cash Inflows',
+  'Summe Einzahlungen': 'Total Inflows',
+  'Auszahlungen': 'Cash Outflows',
+  'Summe Auszahlungen': 'Total Outflows',
+  'Überschuss/Fehlbetrag': 'Surplus / Deficit',
+  'ÜBERSCHUSS': 'SURPLUS',
+  'FEHLBETRAG': 'DEFICIT',
+  'ÜBERSCHUSS/FEHLBETRAG': 'SURPLUS / DEFICIT',
+  'Kontostand': 'Account Balance',
+  'Kontostand (Anfang)': 'Opening Balance',
+  'Kontostand (Ende)': 'Closing Balance',
+  'LIQUIDITÄT': 'LIQUIDITY',
+  'LIQUIDITAET': 'LIQUIDITY',
+  'Kredittilgung': 'Loan Repayment',
+  'Zins- und Tilgungszahlung': 'Interest & Principal',
+  'Investitionen': 'Investments',
+  'Sonstige Erträge': 'Other Income',
+  // Kunden
+  'Neukunden': 'New Customers',
+  'Bestandskunden': 'Existing Customers',
+  'Bestandskunden gesamt': 'Total Existing Customers',
+  'Anzahl Kunden': 'Customer Count',
+  'GESAMT': 'TOTAL',
+  'GESAMTUMSATZ': 'TOTAL REVENUE',
+  // Betriebliche Aufwendungen
+  'Fort-/Weiterbildungskosten (F)': 'Training & Development (F)',
+  'Fahrzeugkosten (F)': 'Vehicle Costs (F)',
+  'KFZ-Steuern (F)': 'Vehicle Tax (F)',
+  'KFZ-Versicherung (F)': 'Vehicle Insurance (F)',
+  'Reisekosten (F)': 'Travel Expenses (F)',
+  'Bewirtungskosten (F)': 'Entertainment Costs (F)',
+  'Internet/Mobilfunk (F)': 'Internet / Mobile (F)',
+  'Cloud-Hosting (SysEleven/Hetzner)': 'Cloud Hosting (SysEleven/Hetzner)',
+  'Berufsgenossenschaft (F)': 'Employers\' Liability Insurance (F)',
+  'Allgemeine Marketingkosten (F)': 'General Marketing Costs (F)',
+  'Gewerbesteuer (F)': 'Trade Tax (F)',
+  'Summe sonstige Aufwendungen': 'Total Other Expenses',
+  'SUMME Betriebliche Aufwendungen': 'TOTAL Operating Expenses',
+  'SUMME': 'TOTAL',
+  'Summe': 'Total',
+}
+
 export const FORMULA_TOOLTIPS: Record<string, string> = {
   'Fort-/Weiterbildungskosten (F)': 'Mitarbeiter (ohne Gründer) × 300 EUR/Mon',
   'Fahrzeugkosten (F)': 'Mitarbeiter (ohne Gründer) × 200 EUR/Mon',
@@ -57,6 +133,22 @@ export const FORMULA_TOOLTIPS: Record<string, string> = {
   'Abschreibungen': 'Summe AfA aus Tab Investitionen',
 }
 
+export const FORMULA_TOOLTIPS_EN: Record<string, string> = {
+  'Fort-/Weiterbildungskosten (F)': 'Employees (excl. founders) × €300/month',
+  'Fahrzeugkosten (F)': 'Employees (excl. founders) × €200/month',
+  'KFZ-Steuern (F)': 'Employees (excl. founders) × €25/month',
+  'KFZ-Versicherung (F)': 'Employees (excl. founders) × €150/month',
+  'Reisekosten (F)': 'Total headcount × €75/month',
+  'Bewirtungskosten (F)': 'Existing customers × €50/month',
+  'Internet/Mobilfunk (F)': 'Total headcount × €50/month',
+  'Cloud-Hosting (SysEleven/Hetzner)': '€1,500 base + (customers − 10) × €100 (first 10 included)',
+  'Berufsgenossenschaft (F)': '0.5% of gross payroll (VBG IT/Office)',
+  'Allgemeine Marketingkosten (F)': '8% of revenue (2026–2028), 10% from 2029',
+  'Gewerbesteuer (F)': '12.25% of profit (rate 3.5% × multiplier 350%, only when profitable)',
+  'Personalkosten': 'Sum from Personnel Costs tab',
+  'Abschreibungen': 'Sum of depreciation from Investments tab',
+}
+
 export function getValues(row: SheetRow): Record<string, number> {
   return row.values || row.values_total || row.values_brutto || (row as Record<string, unknown>).values_invest as Record<string, number> || {}
 }