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/absence.py

@@ -0,0 +1,87 @@
+import uuid
+import enum
+from datetime import date, datetime
+from typing import TYPE_CHECKING
+
+from sqlalchemy import Boolean, Date, DateTime, Enum, ForeignKey, Numeric, String, Text, func
+from sqlalchemy.dialects.postgresql import JSONB, UUID
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.core.database import Base
+
+if TYPE_CHECKING:
+    from app.models.user import User
+    from app.models.absence_type import AbsenceType
+
+
+class AbsenceStatus(str, enum.Enum):
+    PENDING   = "pending"
+    APPROVED  = "approved"
+    REJECTED  = "rejected"
+    CANCELLED = "cancelled"
+
+
+class Absence(Base):
+    __tablename__ = "absences"
+
+    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    user_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), nullable=False, index=True
+    )
+    type_id: Mapped[uuid.UUID] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("absence_types.id", ondelete="RESTRICT"), nullable=False
+    )
+    start_date: Mapped[date] = mapped_column(Date, nullable=False)
+    end_date: Mapped[date] = mapped_column(Date, nullable=False)
+    half_day_start: Mapped[bool] = mapped_column(Boolean, default=False)
+    half_day_end: Mapped[bool] = mapped_column(Boolean, default=False)
+    working_days: Mapped[float] = mapped_column(Numeric(5, 1), default=0)
+    status: Mapped[AbsenceStatus] = mapped_column(
+        Enum(AbsenceStatus, name="absencestatus", values_callable=lambda x: [e.value for e in x]),
+        nullable=False, default=AbsenceStatus.PENDING,
+    )
+    approved_by: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL")
+    )
+    substitute_id: Mapped[uuid.UUID | None] = mapped_column(
+        UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL")
+    )
+    note: Mapped[str | None] = mapped_column(Text)
+    rejection_reason: Mapped[str | None] = mapped_column(Text)
+    correction_note: Mapped[str | None] = mapped_column(Text)
+
+    # Zusatzinformationen (Weiterbildung, Dienstreise, etc.)
+    # Struktur je Kategorie:
+    #   training:      {"course_name": str, "provider": str, "location": str}
+    #   business_trip: {"destination": str, "purpose": str}
+    meta: Mapped[dict | None] = mapped_column(JSONB)
+
+    # Krankheit: Arbeitsunfähigkeitsbescheinigung
+    certificate_required_by: Mapped[date | None] = mapped_column(Date)
+    certificate_received_at: Mapped[date | None] = mapped_column(Date)
+
+    # CalDAV-Sync
+    caldav_uid: Mapped[str | None] = mapped_column(String(255))
+    caldav_user_etag: Mapped[str | None] = mapped_column(Text)
+    caldav_company_etag: Mapped[str | None] = mapped_column(Text)
+    caldav_last_error: Mapped[str | None] = mapped_column(Text)
+    caldav_synced_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    user: Mapped["User"] = relationship(
+        "User", primaryjoin="Absence.user_id == User.id",
+        foreign_keys="[Absence.user_id]", lazy="noload",
+    )
+    absence_type: Mapped["AbsenceType"] = relationship("AbsenceType", lazy="noload")
+    approver: Mapped["User | None"] = relationship(
+        "User", primaryjoin="Absence.approved_by == User.id",
+        foreign_keys="[Absence.approved_by]", lazy="noload",
+    )
+    substitute: Mapped["User | None"] = relationship(
+        "User", primaryjoin="Absence.substitute_id == User.id",
+        foreign_keys="[Absence.substitute_id]", lazy="noload",
+    )
+
+    def __repr__(self) -> str:
+        return f"<Absence {self.user_id} {self.start_date}–{self.end_date} [{self.status}]>"