Add missing migration

src/zenml/zen_stores/migrations/versions/2e695a26fe7a_add_user_default_workspace.py

@@ -0,0 +1,45 @@
+"""add user default workspace [2e695a26fe7a].
+
+Revision ID: 2e695a26fe7a
+Revises: 1f9d1cd00b90
+Create Date: 2025-02-24 18:19:43.121393
+
+"""
+
+import sqlalchemy as sa
+import sqlmodel
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "2e695a26fe7a"
+down_revision = "1f9d1cd00b90"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    """Upgrade database schema and/or data, creating a new revision."""
+    with op.batch_alter_table("user", schema=None) as batch_op:
+        batch_op.add_column(
+            sa.Column(
+                "default_workspace_id",
+                sqlmodel.sql.sqltypes.GUID(),
+                nullable=True,
+            )
+        )
+        batch_op.create_foreign_key(
+            "fk_user_default_workspace_id_workspace",
+            "workspace",
+            ["default_workspace_id"],
+            ["id"],
+            ondelete="SET NULL",
+        )
+
+
+def downgrade() -> None:
+    """Downgrade database schema and/or data back to the previous revision."""
+    with op.batch_alter_table("user", schema=None) as batch_op:
+        batch_op.drop_constraint(
+            "fk_user_default_workspace_id_workspace", type_="foreignkey"
+        )
+        batch_op.drop_column("default_workspace_id")