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/alerts_agent/db/database.py

@@ -0,0 +1,19 @@
+"""
+Database Configuration für Alerts Agent.
+
+Nutzt die gleiche PostgreSQL-Instanz und Base wie Classroom Engine.
+"""
+# Re-export from classroom_engine for consistency
+from classroom_engine.database import (
+    Base,
+    SessionLocal,
+    get_db,
+    engine,
+    DATABASE_URL,
+)
+
+
+def init_db():
+    """Erstellt alle Tabellen (für Entwicklung)."""
+    from . import models  # Import models to register them
+    Base.metadata.create_all(bind=engine)