feat(FN-004): merge fusion/fn-004

apps/api/app/models/base.py

@@ -0,0 +1,26 @@
+import uuid
+from datetime import datetime
+
+from sqlalchemy import func
+from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+class UUIDMixin:
+    id: Mapped[uuid.UUID] = mapped_column(
+        primary_key=True,
+        default=uuid.uuid4,
+    )
+
+
+class TimestampMixin:
+    created_at: Mapped[datetime] = mapped_column(
+        server_default=func.now(),
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        server_default=func.now(),
+        onupdate=func.now(),
+    )