feat(validation): complete validation editor and master data modules

validation-suite/backend/mercury/app/models/contact.py

@@ -0,0 +1,19 @@
+from __future__ import annotations
+
+from sqlalchemy import ForeignKey, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base, TimestampMixin, UUIDMixin
+
+
+class Contact(Base, UUIDMixin, TimestampMixin):
+    __tablename__ = "contacts"
+
+    customer_id: Mapped[str] = mapped_column(ForeignKey("customers.id", ondelete="CASCADE"), index=True)
+    full_name: Mapped[str] = mapped_column(String(160))
+    function: Mapped[str | None] = mapped_column(String(120))
+    email: Mapped[str | None] = mapped_column(String(255))
+    phone: Mapped[str | None] = mapped_column(String(80))
+
+    customer: Mapped["Customer"] = relationship(back_populates="contacts")
+