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.

backend/klausur/services/__init__.py

@@ -0,0 +1,28 @@
+"""
+Services for Klausurkorrektur Module.
+
+- PseudonymizationService: QR code generation, header redaction
+- CorrectionService: LLM integration for AI-assisted grading
+- RosterParser: Parse Klassenbuch photos and roster files
+- SchoolResolver: School/class selection and auto-creation
+- ModuleLinker: Cross-module links (Notenbuch, Elternabend, etc.)
+"""
+
+from .pseudonymizer import PseudonymizationService, get_pseudonymizer
+from .correction_service import ExamCorrectionService, get_correction_service
+from .roster_parser import RosterParser, get_roster_parser
+from .school_resolver import SchoolResolver, get_school_resolver
+from .module_linker import ModuleLinker, get_module_linker
+
+__all__ = [
+    "PseudonymizationService",
+    "get_pseudonymizer",
+    "ExamCorrectionService",
+    "get_correction_service",
+    "RosterParser",
+    "get_roster_parser",
+    "SchoolResolver",
+    "get_school_resolver",
+    "ModuleLinker",
+    "get_module_linker",
+]