feat: BreakPilot PWA - Full codebase (clean push without large binaries)

All services: admin-v2, studio-v2, website, ai-compliance-sdk,
consent-service, klausur-service, voice-service, and infrastructure.
Large PDFs and compiled binaries excluded via .gitignore.

klausur-service/backend/models/enums.py

@@ -0,0 +1,33 @@
+"""
+Klausur-Service Enums
+
+Status and type enumerations.
+"""
+
+from enum import Enum
+
+
+class KlausurModus(str, Enum):
+    """Klausur mode: Landes-Abitur or Vorabitur."""
+    LANDES_ABITUR = "landes_abitur"
+    VORABITUR = "vorabitur"
+
+
+class StudentKlausurStatus(str, Enum):
+    """Processing status of a student's work."""
+    UPLOADED = "uploaded"
+    OCR_PROCESSING = "ocr_processing"
+    OCR_COMPLETE = "ocr_complete"
+    ANALYZING = "analyzing"
+    FIRST_EXAMINER = "first_examiner"
+    SECOND_EXAMINER = "second_examiner"
+    COMPLETED = "completed"
+    ERROR = "error"
+
+
+class EHStatus(str, Enum):
+    """Status of an Erwartungshorizont."""
+    PENDING_RIGHTS = "pending_rights"
+    PROCESSING = "processing"
+    INDEXED = "indexed"
+    ERROR = "error"