feat(pitch-deck): collapsible year view in Finanzplan + remove section labels

- Year navigation: "Alle Jahre" shows 5 annual columns, individual years show 12 months
- Default starts at single year view
- Annual view: flow rows show yearly sum, balance rows show Dec value
- Removed [section] labels from row display
- Footer sum only shown in monthly view (not annual)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

pitch-deck/components/slides/FinanzplanSlide.tsx

@@ -500,18 +500,24 @@ export default function FinanzplanSlide({ lang, investorId, preferredScenarioId,
         </div>
       )}
 
-      {/* Year Navigation — not for GuV, KPIs, Charts (annual views) */}
+      {/* Year Navigation — not for GuV, KPIs, Charts */}
       {!['guv', 'kpis', 'charts'].includes(activeSheet) && (
-        <div className="flex items-center justify-center gap-4 mb-2">
-          <button onClick={() => setYearOffset(Math.max(0, yearOffset - 1))} disabled={yearOffset === 0}
-            className="p-1 text-white/40 hover:text-white/70 disabled:opacity-20">
-            <ChevronLeft className="w-4 h-4" />
-          </button>
-          <span className="text-sm font-bold text-white">{currentYear}</span>
-          <button onClick={() => setYearOffset(Math.min(4, yearOffset + 1))} disabled={yearOffset === 4}
-            className="p-1 text-white/40 hover:text-white/70 disabled:opacity-20">
-            <ChevronRight className="w-4 h-4" />
+        <div className="flex items-center justify-center gap-1 mb-2">
+          <button
+            onClick={() => setYearOffset(-1)}
+            className={`px-3 py-1 text-[10px] font-medium rounded-lg transition-colors ${yearOffset === -1 ? 'bg-indigo-500/20 text-indigo-300 border border-indigo-500/30' : 'text-white/40 hover:text-white/70 hover:bg-white/[0.05]'}`}
+          >
+            {de ? 'Alle Jahre' : 'All Years'}
           </button>
+          {[2026, 2027, 2028, 2029, 2030].map((y, idx) => (
+            <button
+              key={y}
+              onClick={() => setYearOffset(idx)}
+              className={`px-3 py-1 text-[10px] font-medium rounded-lg transition-colors ${yearOffset === idx ? 'bg-indigo-500/20 text-indigo-300 border border-indigo-500/30' : 'text-white/40 hover:text-white/70 hover:bg-white/[0.05]'}`}
+            >
+              {y}
+            </button>
+          ))}
         </div>
       )}
 
@@ -558,21 +564,30 @@ export default function FinanzplanSlide({ lang, investorId, preferredScenarioId,
             </tbody>
           </table>
         ) : (
-          /* === Monthly Grid (all other sheets) === */
+          /* === Monthly/Annual Grid (all other sheets) === */
           <table className="w-full text-[10px]">
             <thead>
               <tr className="border-b border-white/10">
                 <th className="text-left py-1.5 px-2 text-white/60 font-medium sticky left-0 bg-slate-900/90 backdrop-blur min-w-[160px]">
                   {de ? 'Position' : 'Item'}
                 </th>
-                <th className="text-right py-1.5 px-2 text-white/60 font-medium min-w-[70px]">
-                  {currentYear}
-                </th>
-                {MONTH_LABELS.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>
-                ))}
+                {yearOffset === -1 ? (
+                  // All years view
+                  [2026, 2027, 2028, 2029, 2030].map(y => (
+                    <th key={y} className="text-right py-1.5 px-3 text-white/60 font-medium min-w-[80px]">{y}</th>
+                  ))
+                ) : (
+                  <>
+                    <th className="text-right py-1.5 px-2 text-white/60 font-medium min-w-[70px]">
+                      {currentYear}
+                    </th>
+                    {MONTH_LABELS.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>
+                    ))}
+                  </>
+                )}
               </tr>
             </thead>
             <tbody>
@@ -668,39 +683,59 @@ export default function FinanzplanSlide({ lang, investorId, preferredScenarioId,
                         {isEditable && <span className="w-1 h-1 rounded-full bg-indigo-400 flex-shrink-0" />}
                         <span className="truncate"><LabelWithTooltip label={label} /></span>
                         {row.position && <span className="text-white/50 ml-1">({row.position})</span>}
-                        {row.section && <span className="text-white/50 ml-1">[{row.section}]</span>}
                       </div>
                     </td>
-                    <td className={`text-right py-1 px-2 font-medium ${annual < 0 ? 'text-red-400' : isSumRow ? 'text-white/80' : 'text-white/50'}`}>
-                      {formatCell(annual)}
-                    </td>
-                    {Array.from({ length: 12 }, (_, idx) => {
-                      const mKey = `m${monthStart + idx}`
-                      const v = values[mKey] || 0
-
-                      return (
-                        <td
-                          key={idx}
-                          className={`text-right py-1 px-1.5 ${
-                            v < 0 ? 'text-red-400/70' : v > 0 ? (isSumRow ? 'text-white/70' : 'text-white/50') : 'text-white/15'
-                          } ${isEditable ? 'cursor-pointer hover:bg-indigo-500/10' : ''}`}
-                          onDoubleClick={() => {
-                            if (!isEditable) return
-                            const input = prompt(`${label} — ${MONTH_LABELS[idx]} ${currentYear}`, String(v))
-                            if (input !== null) handleCellEdit(row.id, mKey, input)
-                          }}
-                        >
-                          {formatCell(v)}
+                    {yearOffset === -1 ? (
+                      // All years view: show annual values per year
+                      [2026, 2027, 2028, 2029, 2030].map(y => {
+                        const yStart = (y - 2026) * 12 + 1
+                        const yEnd = yStart + 11
+                        let yVal = 0
+                        if (isUnitPrice) {
+                          yVal = values[`m${yEnd}`] || 0
+                        } else if (isBalanceRow) {
+                          yVal = values[`m${yEnd}`] || 0
+                        } else {
+                          for (let m = yStart; m <= yEnd; m++) yVal += values[`m${m}`] || 0
+                        }
+                        return (
+                          <td key={y} className={`text-right py-1 px-3 ${yVal < 0 ? 'text-red-400' : yVal > 0 ? (isSumRow ? 'text-white/80' : 'text-white/50') : 'text-white/15'} ${isSumRow ? 'font-bold' : ''}`}>
+                            {formatCell(Math.round(yVal))}
+                          </td>
+                        )
+                      })
+                    ) : (
+                      <>
+                        <td className={`text-right py-1 px-2 font-medium ${annual < 0 ? 'text-red-400' : isSumRow ? 'text-white/80' : 'text-white/50'}`}>
+                          {formatCell(annual)}
                         </td>
-                      )
-                    })}
+                        {Array.from({ length: 12 }, (_, idx) => {
+                          const mKey = `m${monthStart + idx}`
+                          const v = values[mKey] || 0
+                          return (
+                            <td
+                              key={idx}
+                              className={`text-right py-1 px-1.5 ${
+                                v < 0 ? 'text-red-400/70' : v > 0 ? (isSumRow ? 'text-white/70' : 'text-white/50') : 'text-white/15'
+                              } ${isEditable ? 'cursor-pointer hover:bg-indigo-500/10' : ''}`}
+                              onDoubleClick={() => {
+                                if (!isEditable) return
+                                const input = prompt(`${label} — ${MONTH_LABELS[idx]} ${currentYear}`, String(v))
+                                if (input !== null) handleCellEdit(row.id, mKey, input)
+                              }}
+                            >
+                              {formatCell(v)}
+                            </td>
+                          )
+                        })}
+                      </>
+                    )}
                   </tr>
                 )
               })}
             </tbody>
             {/* Summenzeile für relevante Sheets */}
-            {['personalkosten', 'betriebliche', 'investitionen', 'sonst_ertraege'].includes(activeSheet) && rows.length > 0 && (() => {
-              // Berechne Summe über alle Zeilen die keine Summenzeilen sind
+            {yearOffset !== -1 && ['personalkosten', 'betriebliche', 'investitionen'].includes(activeSheet) && rows.length > 0 && (() => {
               const sumValues: Record<string, number> = {}
               let sumAnnual = 0
               const nonSumRows = rows.filter(r => {
@@ -724,10 +759,7 @@ export default function FinanzplanSlide({ lang, investorId, preferredScenarioId,
                       {de ? 'SUMME' : 'TOTAL'}
                     </td>
                     <td className={`text-right py-1.5 px-2 font-bold text-xs ${sumAnnual < 0 ? 'text-red-400' : 'text-white/80'}`}>
-                      {['kunden', 'kunden_summary'].includes(activeSheet)
-                        ? formatCell(sumValues[`m${monthEnd}`] || 0)
-                        : formatCell(sumAnnual)
-                      }
+                      {formatCell(sumAnnual)}
                     </td>
                     {Array.from({ length: 12 }, (_, idx) => {
                       const mKey = `m${monthStart + idx}`