feat: Create section model

qualia/backend/app/models/__init__.py

@@ -1,2 +1,3 @@
+from app.models.section import Section
 from app.models.form_cycle import FormCycle, FormCycleStatus
 from app.models.user import Role, User

qualia/backend/app/models/section.py

@@ -0,0 +1,20 @@
+import uuid
+
+from sqlalchemy import Integer, String, UniqueConstraint, Uuid, text
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.core.database import Base
+
+
+class Section(Base):
+    __tablename__ = "section"
+    __table_args__ = (
+        UniqueConstraint("form_cycle_id", "display_order", name="uq_section_form_display_order"),
+    )
+
+    id: Mapped[uuid.UUID] = mapped_column(Uuid, primary_key=True, default=uuid.uuid4)
+    form_cycle_id: Mapped[uuid.UUID] = mapped_column(Uuid, index=True, nullable=False)
+    title: Mapped[str | None] = mapped_column(String(255), nullable=True)
+    display_order: Mapped[int] = mapped_column(
+        Integer, default=1, server_default=text("1"), nullable=False
+    )