feat(pitch-print): redesign PDF investor brief from scratch

Throws away the screen-deck-derived print system. Builds a new institutional-research aesthetic:
- 12-col grid on A4 landscape, hairline rules, no colored bars, no icons
- 3-color discipline: indigo (structural), emerald (positive), red (problem)
- Plus Jakarta Sans 800 for hero numerals + titles; tabular numerals everywhere
- 1-to-1 content parity with the interactive deck: full USP (8 cards), full competition matrix (45 features, 12 AppSec features, 8+6 competitor profiles), Finanzplan P&L grid + KPI dashboard, full glossary
- 2-page slides where content demands (Exec Summary, USP, Competition, Finanzplan)
- 28 base pages; +1 for Financial detail; +1 for Cap Table (suppressed on Wandeldarlehen)

Files:
- New: PrintIntroSlides, PrintProductSlides, PrintMarketSlides, PrintCompetitionSlides
- Rewritten: PrintLayout (new primitives Page/KpiRow/TwoCol/ThreeCol/DataTable/MatrixGlyph/Callout), PrintAnnexSlides, PrintFinancialSlides, PrintDeck
- Removed: PrintCoreSlides.tsx, PrintExtraSlides.tsx (obsolete)
- print.css now sets Plus Jakarta Sans as the print font family
- All files under 500 LOC cap

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

pitch-deck/app/pitch-print/print.css

@@ -24,12 +24,14 @@
     min-height: 0 !important;
     overflow: visible !important;
     background: #ffffff !important;
-    color: #000000 !important;
+    color: #0f172a !important;
     margin: 0 !important;
     padding: 0 !important;
+    font-family: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, sans-serif !important;
     -webkit-print-color-adjust: exact;
     -moz-print-color-adjust: exact;
     print-color-adjust: exact;
+    font-variant-numeric: tabular-nums;
   }
 
   .no-print {
@@ -41,6 +43,7 @@
     margin: 0 !important;
     display: block !important;
     overflow: visible !important;
+    font-family: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif !important;
   }
 
   /*
@@ -73,8 +76,23 @@
     margin: 0 !important;
     box-shadow: none !important;
     background: #ffffff !important;
+    font-family: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif !important;
+    color: #0f172a !important;
     -webkit-print-color-adjust: exact;
     -moz-print-color-adjust: exact;
     print-color-adjust: exact;
   }
+
+  /* Tabular numerals everywhere — institutional research aesthetic */
+  .print-page table,
+  .print-page .num,
+  .print-page .kpi {
+    font-variant-numeric: tabular-nums;
+  }
+}
+
+/* Screen preview: apply Plus Jakarta Sans to print pages even on screen */
+.print-page, .print-page-break {
+  font-family: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
+  font-variant-numeric: tabular-nums;
 }