feat: Add staged funding model, financial compute engine, annex slides and UI enhancements

Restructure financial plan from single 200k SAFE to realistic staged funding
(25k Stammkapital, 25k Angel, 200k Wandeldarlehen, 1M Series A = 1.25M total).
Add 60-month compute engine with CAPEX/OPEX accounting, cash constraints,
hardware financing (30% upfront / 70% leasing), and revenue-based hiring caps.
Rebuild TheAskSlide with 4-event funding timeline, update i18n (DE/EN),
chat agent core messages, and add 15 new annex/technology slides with
supporting UI components (KPICard, RunwayGauge, WaterfallChart, etc.).

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

pitch-deck/app/api/financial-model/route.ts

@@ -0,0 +1,73 @@
+import { NextRequest, NextResponse } from 'next/server'
+import pool from '@/lib/db'
+
+export const dynamic = 'force-dynamic'
+
+// GET: Load all scenarios with their assumptions
+export async function GET() {
+  try {
+    const client = await pool.connect()
+    try {
+      const scenarios = await client.query(
+        'SELECT * FROM pitch_fm_scenarios ORDER BY is_default DESC, name'
+      )
+
+      const assumptions = await client.query(
+        'SELECT * FROM pitch_fm_assumptions ORDER BY sort_order'
+      )
+
+      const result = scenarios.rows.map(s => ({
+        ...s,
+        assumptions: assumptions.rows
+          .filter(a => a.scenario_id === s.id)
+          .map(a => ({
+            ...a,
+            value: typeof a.value === 'string' ? JSON.parse(a.value) : a.value,
+          })),
+      }))
+
+      return NextResponse.json(result)
+    } finally {
+      client.release()
+    }
+  } catch (error) {
+    console.error('Financial model load error:', error)
+    return NextResponse.json({ error: 'Failed to load scenarios' }, { status: 500 })
+  }
+}
+
+// POST: Create a new scenario
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json()
+    const { name, description, color, copyFrom } = body
+
+    if (!name) {
+      return NextResponse.json({ error: 'Name is required' }, { status: 400 })
+    }
+
+    const client = await pool.connect()
+    try {
+      const scenario = await client.query(
+        'INSERT INTO pitch_fm_scenarios (name, description, color) VALUES ($1, $2, $3) RETURNING *',
+        [name, description || '', color || '#6366f1']
+      )
+
+      // If copyFrom is set, copy assumptions from another scenario
+      if (copyFrom) {
+        await client.query(`
+          INSERT INTO pitch_fm_assumptions (scenario_id, key, label_de, label_en, value, value_type, unit, min_value, max_value, step_size, category, sort_order)
+          SELECT $1, key, label_de, label_en, value, value_type, unit, min_value, max_value, step_size, category, sort_order
+          FROM pitch_fm_assumptions WHERE scenario_id = $2
+        `, [scenario.rows[0].id, copyFrom])
+      }
+
+      return NextResponse.json(scenario.rows[0])
+    } finally {
+      client.release()
+    }
+  } catch (error) {
+    console.error('Create scenario error:', error)
+    return NextResponse.json({ error: 'Failed to create scenario' }, { status: 500 })
+  }
+}