feat(agent): add support for workflow agents with updated constraints and configuration

migrations/versions/ebac70616dab_worflow_agent.py

@@ -0,0 +1,49 @@
+"""worflow_agent
+
+Revision ID: ebac70616dab
+Revises: c107446e38aa
+Create Date: 2025-05-06 17:05:26.884902
+
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = "ebac70616dab"
+down_revision: Union[str, None] = "c107446e38aa"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    # Remover a constraint antiga
+    op.drop_constraint("check_agent_type", "agents", type_="check")
+
+    # Adicionar a nova constraint que inclui o tipo 'workflow'
+    op.create_check_constraint(
+        "check_agent_type",
+        "agents",
+        "type IN ('llm', 'sequential', 'parallel', 'loop', 'a2a', 'workflow')",
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    # Remover a constraint nova
+    op.drop_constraint("check_agent_type", "agents", type_="check")
+
+    # Restaurar a constraint anterior sem o tipo 'workflow'
+    op.create_check_constraint(
+        "check_agent_type",
+        "agents",
+        "type IN ('llm', 'sequential', 'parallel', 'loop', 'a2a')",
+    )
+    # ### end Alembic commands ###