feat(founding-wizard): Per-Person IP-Assignment + Prefill + E2E-Tests

Wizard unterstuetzt jetzt 2-4 Gesellschafter mit individuellem IP-Bereich:
- Pro Gruender ein IP-Assignment-Vertrag (z.B. Benjamin: Compliance+RAG;
  Sharang: Security+Infrastruktur). Pro GF ein eigener Dienstvertrag.
- Step 1: Prefill-Button aus Unternehmensprofil + Felder Registergericht
  und HRB-Nr.
- Step 2: Rollen-Dropdown (CEO/CTO/CFO/COO/CPO/GF/Sonstige) statt freie
  Texteingabe, IP-Bereiche-Textarea pro Person.

Backend:
- generate_documents() iteriert pro Person fuer PER_PERSON_DOCS.
- _build_person_context() injiziert ASSIGNOR_*, GF_*, IP_LIST_DETAILS
  aus person.ip_areas.
- base_context() propagiert basics.register_court und basics.hrb_number.

Tests:
- 30/30 Pytest gruen (6 neue: Per-Person-Context, Slug-Helper,
  Registergericht-Propagation).
- 4 neue Playwright-E2E-Specs (hermetisch via route.fulfill, mit
  Console-/Page-Error-Traps): kompletter 8-Step-Flow, Prefill-Fehlerpfad,
  Step-Navigation/Reset, Rollen-Dropdown + IP-Areas.
- Spec setzt 'bp-sdk-cookie-consent' im addInitScript damit der
  CookieBannerOverlay nicht die Wizard-Buttons ueberlagert.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

admin-compliance/app/sdk/founding-wizard/_components/StepBasics.tsx

@@ -1,5 +1,6 @@
 'use client'
 
+import { useState } from 'react'
 import type { FoundingWizardState } from '@/lib/sdk/founding/types'
 
 interface Props {
@@ -9,8 +10,73 @@ interface Props {
 
 export function StepBasics({ state, update }: Props) {
   const b = state.basics
+  const [prefillStatus, setPrefillStatus] = useState<'idle' | 'loading' | 'success' | 'error'>('idle')
+
+  async function prefillFromCompanyProfile() {
+    setPrefillStatus('loading')
+    try {
+      const res = await fetch('/api/sdk/v1/company-profile', { cache: 'no-store' })
+      if (!res.ok) throw new Error(`HTTP ${res.status}`)
+      const payload = await res.json()
+      const p = payload?.profile ?? payload
+      if (!p || typeof p !== 'object') throw new Error('leeres Profil')
+      const industries = Array.isArray(p.industry) ? p.industry.filter(Boolean) : []
+      const industry = industries.length > 0
+        ? industries.join(', ')
+        : (p.industryOther || b.industry)
+      const address = [p.headquartersStreet, [p.headquartersZip, p.headquartersCity].filter(Boolean).join(' ')]
+        .filter(Boolean).join(', ') || b.company_address
+      const seat = p.headquartersCity || b.company_seat
+      // Purpose ableiten aus offerings/businessModel — Fallback wenn nichts da
+      const purposeBits: string[] = []
+      if (p.businessModel) purposeBits.push(`Geschäftsmodell: ${p.businessModel}`)
+      if (Array.isArray(p.offerings) && p.offerings.length > 0)
+        purposeBits.push(`Leistungen: ${p.offerings.join(', ')}`)
+      const purpose = purposeBits.length > 0
+        ? purposeBits.join('; ')
+        : b.company_purpose_description
+      update('basics', {
+        ...b,
+        company_name: p.companyName || b.company_name,
+        legal_form: (p.legalForm === 'UG' ? 'UG' : (p.legalForm === 'GmbH' ? 'GmbH' : b.legal_form)),
+        company_seat: seat,
+        company_address: address,
+        industry,
+        company_purpose_description: b.company_purpose_description.trim() === '' ? purpose : b.company_purpose_description,
+      })
+      setPrefillStatus('success')
+    } catch (err) {
+      console.error('[founding-wizard] prefill failed', err)
+      setPrefillStatus('error')
+    }
+  }
+
   return (
     <div className="space-y-4">
+      <div className="flex items-center justify-between">
+        <p className="text-sm text-gray-600">
+          Stammdaten der Gesellschaft. Pflicht für Satzung, HRB-Anmeldung und SHA.
+        </p>
+        <button
+          type="button"
+          onClick={prefillFromCompanyProfile}
+          disabled={prefillStatus === 'loading'}
+          className="px-3 py-1.5 text-sm rounded-lg border border-blue-300 bg-blue-50 hover:bg-blue-100 disabled:opacity-50"
+        >
+          {prefillStatus === 'loading' ? 'Lade…' : 'Aus Unternehmensprofil vorbefüllen'}
+        </button>
+      </div>
+      {prefillStatus === 'success' && (
+        <div className="text-xs text-green-700 bg-green-50 border border-green-200 rounded px-2 py-1">
+          Daten aus Unternehmensprofil übernommen. Bitte prüfen und ergänzen.
+        </div>
+      )}
+      {prefillStatus === 'error' && (
+        <div className="text-xs text-amber-700 bg-amber-50 border border-amber-200 rounded px-2 py-1">
+          Konnte Unternehmensprofil nicht laden — bitte Felder manuell ausfüllen.
+        </div>
+      )}
+
       <div className="grid grid-cols-2 gap-4">
         <div>
           <label className="block text-sm font-medium text-gray-700 mb-1">Firmenname</label>
@@ -78,6 +144,35 @@ export function StepBasics({ state, update }: Props) {
             className="w-full px-3 py-2 border rounded-lg"
           />
         </div>
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            Registergericht
+          </label>
+          <input
+            data-testid="register-court"
+            type="text"
+            value={b.register_court || ''}
+            onChange={e => update('basics', { ...b, register_court: e.target.value })}
+            placeholder="z.B. Amtsgericht Stuttgart"
+            className="w-full px-3 py-2 border rounded-lg"
+          />
+          <p className="text-xs text-gray-500 mt-1">
+            Zuständiges Amtsgericht für HRB-Eintragung
+          </p>
+        </div>
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-1">
+            HRB-Nummer <span className="text-gray-400">(optional)</span>
+          </label>
+          <input
+            data-testid="hrb-number"
+            type="text"
+            value={b.hrb_number || ''}
+            onChange={e => update('basics', { ...b, hrb_number: e.target.value })}
+            placeholder="z.B. HRB 12345 (leer falls noch nicht eingetragen)"
+            className="w-full px-3 py-2 border rounded-lg"
+          />
+        </div>
       </div>
 
       <div>