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/state_engine/__init__.py

@@ -0,0 +1,43 @@
+"""
+State Engine - Herzstück des BreakPilot Begleiter-Modus.
+
+Komponenten:
+1. Schuljahres-State-Machine (Phasen)
+2. Antizipations-Engine (Regeln + Vorschläge)
+3. TeacherContext (Aggregierter Kontext)
+"""
+
+from .models import (
+    SchoolYearPhase,
+    PhaseInfo,
+    TeacherContext,
+    ClassSummary,
+    Event,
+    TeacherStats,
+    Milestone,
+    PHASE_INFO,
+    get_phase_info
+)
+from .rules import Rule, Suggestion, SuggestionPriority, RULES
+from .engine import AnticipationEngine, PhaseService
+
+__all__ = [
+    # Models
+    "SchoolYearPhase",
+    "PhaseInfo",
+    "TeacherContext",
+    "ClassSummary",
+    "Event",
+    "TeacherStats",
+    "Milestone",
+    "PHASE_INFO",
+    "get_phase_info",
+    # Rules
+    "Rule",
+    "Suggestion",
+    "SuggestionPriority",
+    "RULES",
+    # Engine
+    "AnticipationEngine",
+    "PhaseService",
+]