[interface-change] Phase 4: Extract shared types + fix Docker context

Shared types extracted to shared/types/:
- companion.ts (33+ types, was 100% duplicated admin-lehrer ↔ studio-v2)
- klausur.ts (18+ types, was 95% duplicated across 4 locations)
- ocr-labeling.ts (11 types, was 100% duplicated admin-lehrer ↔ website)

Original type files replaced with re-exports for backward compat.
tsconfig.json paths updated with @shared/* alias in all 3 services.

Docker: Changed build context from ./service to . (root) so shared/
is accessible. Dockerfiles updated to COPY service/ + shared/.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

website/components/klausur-korrektur/list-types.ts

@@ -1,39 +1,17 @@
 /**
  * Types and constants for the Klausur-Korrektur list page.
  * Shared between admin and lehrer routes.
+ *
+ * Domain types are re-exported from the shared module.
+ * Only the API_BASE constant remains local (env-dependent).
  */
 
+export type {
+  TabId,
+  CreateKlausurForm,
+  VorabiturEHForm,
+  EHTemplate,
+  DirektuploadForm,
+} from '../../../shared/types/klausur'
+
 export const API_BASE = process.env.NEXT_PUBLIC_KLAUSUR_SERVICE_URL || 'http://localhost:8086'
-
-export type TabId = 'willkommen' | 'klausuren' | 'erstellen' | 'direktupload' | 'statistiken'
-
-export interface CreateKlausurForm {
-  title: string
-  subject: string
-  year: number
-  semester: string
-  modus: 'abitur' | 'vorabitur'
-}
-
-export interface VorabiturEHForm {
-  aufgabentyp: string
-  titel: string
-  text_titel: string
-  text_autor: string
-  aufgabenstellung: string
-}
-
-export interface EHTemplate {
-  aufgabentyp: string
-  name: string
-  description: string
-  category: string
-}
-
-export interface DirektuploadForm {
-  files: File[]
-  ehFile: File | null
-  ehText: string
-  aufgabentyp: string
-  klausurTitle: string
-}

website/components/klausur-korrektur/workspace-types.ts

@@ -1,81 +1,23 @@
 /**
  * Types and constants for the Korrektur-Workspace.
  * Shared between admin and lehrer routes.
+ *
+ * Domain types are re-exported from the shared module.
+ * Only the API_BASE constant remains local (env-dependent).
  */
 
-import type { CriteriaScores } from '../../app/admin/klausur-korrektur/types'
+export type {
+  ExaminerInfo,
+  ExaminerResult,
+  ExaminerWorkflow,
+  ActiveTab,
+  CriteriaScores,
+} from '../../../shared/types/klausur'
 
-// Examiner workflow types
-export interface ExaminerInfo {
-  id: string
-  assigned_at: string
-  notes?: string
-}
-
-export interface ExaminerResult {
-  grade_points: number
-  criteria_scores?: CriteriaScores
-  notes?: string
-  submitted_at: string
-}
-
-export interface ExaminerWorkflow {
-  student_id: string
-  workflow_status: string
-  visibility_mode: string
-  user_role: 'ek' | 'zk' | 'dk' | 'viewer'
-  first_examiner?: ExaminerInfo
-  second_examiner?: ExaminerInfo
-  third_examiner?: ExaminerInfo
-  first_result?: ExaminerResult
-  first_result_visible?: boolean
-  second_result?: ExaminerResult
-  third_result?: ExaminerResult
-  grade_difference?: number
-  final_grade?: number
-  consensus_reached?: boolean
-  consensus_type?: string
-  einigung?: {
-    final_grade: number
-    notes: string
-    type: string
-    submitted_by: string
-    submitted_at: string
-    ek_grade: number
-    zk_grade: number
-  }
-  drittkorrektur_reason?: string
-}
-
-export type ActiveTab = 'kriterien' | 'gutachten' | 'annotationen' | 'eh-vorschlaege'
-
-// Workflow status labels
-export const WORKFLOW_STATUS_LABELS: Record<string, { label: string; color: string }> = {
-  not_started: { label: 'Nicht gestartet', color: 'bg-slate-100 text-slate-700' },
-  ek_in_progress: { label: 'EK in Arbeit', color: 'bg-blue-100 text-blue-700' },
-  ek_completed: { label: 'EK abgeschlossen', color: 'bg-blue-200 text-blue-800' },
-  zk_assigned: { label: 'ZK zugewiesen', color: 'bg-amber-100 text-amber-700' },
-  zk_in_progress: { label: 'ZK in Arbeit', color: 'bg-amber-200 text-amber-800' },
-  zk_completed: { label: 'ZK abgeschlossen', color: 'bg-amber-300 text-amber-900' },
-  einigung_required: { label: 'Einigung erforderlich', color: 'bg-orange-100 text-orange-700' },
-  einigung_completed: { label: 'Einigung abgeschlossen', color: 'bg-green-100 text-green-700' },
-  drittkorrektur_required: { label: 'DK erforderlich', color: 'bg-red-100 text-red-700' },
-  drittkorrektur_assigned: { label: 'DK zugewiesen', color: 'bg-red-200 text-red-800' },
-  drittkorrektur_in_progress: { label: 'DK in Arbeit', color: 'bg-red-300 text-red-900' },
-  completed: { label: 'Abgeschlossen', color: 'bg-green-200 text-green-800' },
-}
-
-export const ROLE_LABELS: Record<string, { label: string; color: string }> = {
-  ek: { label: 'Erstkorrektor', color: 'bg-blue-500' },
-  zk: { label: 'Zweitkorrektor', color: 'bg-amber-500' },
-  dk: { label: 'Drittkorrektor', color: 'bg-purple-500' },
-  viewer: { label: 'Betrachter', color: 'bg-slate-500' },
-}
+export {
+  WORKFLOW_STATUS_LABELS,
+  ROLE_LABELS,
+  GRADE_LABELS,
+} from '../../../shared/types/klausur'
 
 export const API_BASE = process.env.NEXT_PUBLIC_KLAUSUR_SERVICE_URL || 'http://localhost:8086'
-
-export const GRADE_LABELS: Record<number, string> = {
-  15: '1+', 14: '1', 13: '1-', 12: '2+', 11: '2', 10: '2-',
-  9: '3+', 8: '3', 7: '3-', 6: '4+', 5: '4', 4: '4-',
-  3: '5+', 2: '5', 1: '5-', 0: '6',
-}