feat(dsr): Go DSR deprecated, Python Export-Endpoint, Frontend an Backend-APIs anbinden

- Go: DEPRECATED-Kommentare an allen DSR-Handlern und Routes
- Python: GET /dsr/export?format=csv|json (Semikolon-CSV, 12 Spalten)
- API-Client: 12 neue Funktionen (verify, assign, extend, complete, reject, communications, exception-checks, history)
- Detail-Seite: Alle Actions verdrahtet (keine Coming-soon-Alerts mehr), Communications + Art.17(3)-Checks + Audit-Log live
- Haupt-Seite: CSV-Export-Button im Header
- Tests: 54/54 bestanden (4 neue Export-Tests)

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

admin-compliance/lib/sdk/dsr/api.ts

@@ -245,6 +245,171 @@ export async function updateSDKDSRStatus(id: string, status: string): Promise<vo
   }
 }
 
+// =============================================================================
+// WORKFLOW ACTIONS
+// =============================================================================
+
+/**
+ * Verify identity of DSR requester
+ */
+export async function verifyDSRIdentity(id: string, data: { method: string; notes?: string; document_ref?: string }): Promise<DSRRequest> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/verify-identity`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+    body: JSON.stringify(data),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return transformBackendDSR(await res.json())
+}
+
+/**
+ * Assign DSR to a user
+ */
+export async function assignDSR(id: string, assigneeId: string): Promise<DSRRequest> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/assign`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+    body: JSON.stringify({ assignee_id: assigneeId }),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return transformBackendDSR(await res.json())
+}
+
+/**
+ * Extend DSR deadline (Art. 12 Abs. 3 DSGVO)
+ */
+export async function extendDSRDeadline(id: string, reason: string, days: number = 60): Promise<DSRRequest> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/extend`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+    body: JSON.stringify({ reason, days }),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return transformBackendDSR(await res.json())
+}
+
+/**
+ * Complete a DSR
+ */
+export async function completeDSR(id: string, summary?: string): Promise<DSRRequest> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/complete`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+    body: JSON.stringify({ summary }),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return transformBackendDSR(await res.json())
+}
+
+/**
+ * Reject a DSR with legal basis
+ */
+export async function rejectDSR(id: string, reason: string, legalBasis?: string): Promise<DSRRequest> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/reject`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+    body: JSON.stringify({ reason, legal_basis: legalBasis }),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return transformBackendDSR(await res.json())
+}
+
+// =============================================================================
+// COMMUNICATIONS
+// =============================================================================
+
+/**
+ * Fetch communications for a DSR
+ */
+export async function fetchDSRCommunications(id: string): Promise<any[]> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/communications`, {
+    headers: getSdkHeaders(),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return res.json()
+}
+
+/**
+ * Send a communication for a DSR
+ */
+export async function sendDSRCommunication(id: string, data: { communication_type?: string; channel?: string; subject?: string; content: string }): Promise<any> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/communicate`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+    body: JSON.stringify({ communication_type: 'outgoing', channel: 'email', ...data }),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return res.json()
+}
+
+// =============================================================================
+// EXCEPTION CHECKS (Art. 17)
+// =============================================================================
+
+/**
+ * Fetch exception checks for an erasure DSR
+ */
+export async function fetchDSRExceptionChecks(id: string): Promise<any[]> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/exception-checks`, {
+    headers: getSdkHeaders(),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return res.json()
+}
+
+/**
+ * Initialize Art. 17(3) exception checks for an erasure DSR
+ */
+export async function initDSRExceptionChecks(id: string): Promise<any[]> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/exception-checks/init`, {
+    method: 'POST',
+    headers: getSdkHeaders(),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return res.json()
+}
+
+/**
+ * Update a single exception check
+ */
+export async function updateDSRExceptionCheck(dsrId: string, checkId: string, data: { applies: boolean; notes?: string }): Promise<any> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${dsrId}/exception-checks/${checkId}`, {
+    method: 'PUT',
+    headers: getSdkHeaders(),
+    body: JSON.stringify(data),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return res.json()
+}
+
+// =============================================================================
+// HISTORY
+// =============================================================================
+
+/**
+ * Fetch status change history for a DSR
+ */
+export async function fetchDSRHistory(id: string): Promise<any[]> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}/history`, {
+    headers: getSdkHeaders(),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return res.json()
+}
+
+/**
+ * Update DSR fields (priority, notes, etc.)
+ */
+export async function updateDSR(id: string, data: Record<string, any>): Promise<DSRRequest> {
+  const res = await fetch(`/api/sdk/v1/compliance/dsr/${id}`, {
+    method: 'PUT',
+    headers: getSdkHeaders(),
+    body: JSON.stringify(data),
+  })
+  if (!res.ok) throw new Error(`HTTP ${res.status}`)
+  return transformBackendDSR(await res.json())
+}
+
 // =============================================================================
 // MOCK DATA FUNCTIONS (kept as fallback)
 // =============================================================================