Initial commit – TimeMaster Zeiterfassung & HR-Tool

Stand: agent-06 (Audit-Log), agent-05 (Krankmeldung), agent-07 Phase 1 (Personalnummer),
Busylight-Pull-Integration, TOTP/2FA, Abwesenheiten, Zeiterfassung, Kiosk-Grundgerüst.
Migrations 0001–0023 deployed auf 192.168.1.137 + .164.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/models/audit_log.py

@@ -0,0 +1,23 @@
+import uuid
+from datetime import datetime
+
+from sqlalchemy import DateTime, ForeignKey, String, func
+from sqlalchemy.dialects.postgresql import JSONB, UUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.core.database import Base
+
+
+class AuditLog(Base):
+    __tablename__ = "audit_logs"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    company_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("companies.id", ondelete="SET NULL"), index=True)
+    user_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), index=True)
+    action: Mapped[str] = mapped_column(String(100), nullable=False)
+    entity_type: Mapped[str | None] = mapped_column(String(100))
+    entity_id: Mapped[uuid.UUID | None] = mapped_column(UUID(as_uuid=True))
+    old_value: Mapped[dict | None] = mapped_column(JSONB)
+    new_value: Mapped[dict | None] = mapped_column(JSONB)
+    ip: Mapped[str | None] = mapped_column(String(45))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), index=True)