fix(founding-wizard): add python-docx dep + Lifecycle filter UI

- requirements.txt: python-docx==1.2.0 (Container hatte das modul nicht)
- document-generator: Lifecycle-Filter (Pre-Founding/Founding/Startup/KMU/Konzern)
  zeigt nur relevante Templates fuer aktuelle Phase

admin-compliance/app/sdk/document-generator/_components/LifecycleFilter.tsx

@@ -0,0 +1,124 @@
+'use client'
+
+/**
+ * Lifecycle-Phasen-Filter für den Document-Generator.
+ *
+ * Zeigt 5 Phasen-Tabs (Pre-Founding, Founding, Startup, KMU, Konzern) und
+ * filtert die angezeigten Templates entsprechend ihres `lifecycle_stage`-Arrays.
+ *
+ * Phasen-Definitionen synchron zu lib/sdk/founding/template-categories.ts
+ */
+
+import {
+  LIFECYCLE_STAGE_LABELS,
+  type LifecycleStage,
+  TEMPLATE_CATEGORIES,
+} from '@/lib/sdk/founding/template-categories'
+
+interface Props {
+  activeStage: LifecycleStage | 'all'
+  onChange: (stage: LifecycleStage | 'all') => void
+  /** Template-Counts pro Stage (optional, sonst aus Code-Registry berechnet) */
+  countsByStage?: Record<string, number>
+}
+
+const STAGE_ORDER: (LifecycleStage | 'all')[] = [
+  'all',
+  'pre_founding',
+  'founding',
+  'startup',
+  'kmu',
+  'konzern',
+]
+
+const STAGE_ICONS: Record<LifecycleStage | 'all', string> = {
+  all: '📚',
+  pre_founding: '🌱',
+  founding: '⚖️',
+  startup: '🚀',
+  kmu: '🏢',
+  konzern: '🏛️',
+}
+
+const STAGE_HINTS: Record<LifecycleStage, string> = {
+  pre_founding: 'Vor dem Notartermin — Term Sheet, IP-Sicherung, Wandeldarlehen',
+  founding: 'Für den Notartermin — Satzung, Gesellschafterliste, HRB-Anmeldung',
+  startup: '0–3 Jahre, <25 Mitarbeiter — Arbeitsverträge, AVV, Datenschutz',
+  kmu: '3+ Jahre, 25–250 MA — ISMS, Whistleblower, vollständige TOM',
+  konzern: '250+ MA — Konzern-Compliance, ISO 27001',
+}
+
+export function LifecycleFilter({ activeStage, onChange, countsByStage }: Props) {
+  const counts = countsByStage || computeCountsFromRegistry()
+
+  return (
+    <div className="mb-6" data-testid="lifecycle-filter">
+      <div className="flex items-center gap-2 mb-2">
+        <h3 className="text-sm font-semibold text-gray-700">Phase Deines Unternehmens</h3>
+        <span className="text-xs text-gray-500">— filtert Dokumente nach Lifecycle</span>
+      </div>
+      <div className="flex flex-wrap gap-2">
+        {STAGE_ORDER.map(stage => {
+          const isAll = stage === 'all'
+          const count = isAll
+            ? Object.values(counts).reduce((s, c) => s + c, 0)
+            : (counts[stage] || 0)
+          const label = isAll ? 'Alle' : LIFECYCLE_STAGE_LABELS[stage as LifecycleStage].split(' (')[0]
+          const isActive = activeStage === stage
+          return (
+            <button
+              key={stage}
+              type="button"
+              data-testid={`stage-tab-${stage}`}
+              onClick={() => onChange(stage)}
+              className={`px-3 py-2 rounded-lg border text-sm font-medium transition ${
+                isActive
+                  ? 'bg-purple-600 text-white border-purple-600 shadow-sm'
+                  : 'bg-white text-gray-700 border-gray-200 hover:border-purple-300 hover:bg-purple-50'
+              }`}
+            >
+              <span className="mr-1.5">{STAGE_ICONS[stage]}</span>
+              {label}
+              <span className={`ml-2 px-1.5 py-0.5 text-xs rounded-full ${
+                isActive ? 'bg-white/20' : 'bg-gray-100 text-gray-600'
+              }`}>
+                {count}
+              </span>
+            </button>
+          )
+        })}
+      </div>
+      {activeStage !== 'all' && (
+        <p className="mt-2 text-sm text-gray-500" data-testid="stage-hint">
+          {STAGE_HINTS[activeStage as LifecycleStage]}
+        </p>
+      )}
+    </div>
+  )
+}
+
+function computeCountsFromRegistry(): Record<string, number> {
+  const counts: Record<string, number> = {
+    pre_founding: 0, founding: 0, startup: 0, kmu: 0, konzern: 0,
+  }
+  for (const cat of Object.values(TEMPLATE_CATEGORIES)) {
+    for (const stage of cat.lifecycle_stage) {
+      counts[stage] = (counts[stage] || 0) + 1
+    }
+  }
+  return counts
+}
+
+export function filterTemplatesByStage<T extends { document_type?: string; type?: string }>(
+  templates: T[],
+  stage: LifecycleStage | 'all'
+): T[] {
+  if (stage === 'all') return templates
+  return templates.filter(t => {
+    const docType = t.document_type || t.type
+    if (!docType) return false
+    const cat = TEMPLATE_CATEGORIES[docType]
+    if (!cat) return stage === 'startup'  // Fallback: unkategorisierte zeigen wir in Startup
+    return cat.lifecycle_stage.includes(stage)
+  })
+}