fix: clean up migration (#437)

* fix: clean up migration

* chore: Auto-fix pre-commit issues

---------

Co-authored-by: nndn <guru.nandan.udupi@gmail.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: 3 people

app/alembic/versions/20250626135047_a7f9c1ec89e2_add_media_attachments_support.py

@@ -10,7 +10,6 @@
 
 from alembic import op
 import sqlalchemy as sa
-from sqlalchemy.dialects import postgresql
 
 # revision identifiers, used by Alembic.
 revision: str = "20250626135047_a7f9c1ec89e2"
@@ -20,14 +19,7 @@
 
 
 def upgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.drop_index("ix_execution_logs_execution_id", table_name="execution_logs")
-    op.drop_table("execution_logs")
-    op.drop_index("ix_executions_workflow_id", table_name="executions")
-    op.drop_table("executions")
-    op.drop_table("alembic_version_workflows")
-    op.drop_index("ix_workflows_created_by", table_name="workflows")
-    op.drop_table("workflows")
+
     # Add column as nullable first
     op.add_column("messages", sa.Column("has_attachments", sa.Boolean(), nullable=True))
     # Update all existing rows to set has_attachments=False
@@ -40,78 +32,4 @@ def upgrade() -> None:
 
 
 def downgrade() -> None:
-    # ### commands auto generated by Alembic - please adjust! ###
     op.drop_column("messages", "has_attachments")
-    op.create_table(
-        "workflows",
-        sa.Column("id", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("title", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("description", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("created_by", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column(
-            "created_at", postgresql.TIMESTAMP(), autoincrement=False, nullable=False
-        ),
-        sa.Column(
-            "updated_at", postgresql.TIMESTAMP(), autoincrement=False, nullable=False
-        ),
-        sa.Column("repo_name", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("branch", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("agent_id", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("hash", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("task", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("triggers_string", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("is_paused", sa.BOOLEAN(), autoincrement=False, nullable=False),
-        sa.PrimaryKeyConstraint("id", name="workflows_pkey"),
-        sa.UniqueConstraint("hash", name="workflows_hash_key"),
-    )
-    op.create_index(
-        "ix_workflows_created_by", "workflows", ["created_by"], unique=False
-    )
-    op.create_table(
-        "alembic_version_workflows",
-        sa.Column(
-            "version_num", sa.VARCHAR(length=32), autoincrement=False, nullable=False
-        ),
-        sa.PrimaryKeyConstraint("version_num", name="alembic_version_workflows_pkc"),
-    )
-    op.create_table(
-        "executions",
-        sa.Column("id", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("workflow_id", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("trigger", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column(
-            "created_at", postgresql.TIMESTAMP(), autoincrement=False, nullable=False
-        ),
-        sa.Column(
-            "updated_at", postgresql.TIMESTAMP(), autoincrement=False, nullable=False
-        ),
-        sa.PrimaryKeyConstraint("id", name="executions_pkey"),
-        postgresql_ignore_search_path=False,
-    )
-    op.create_index(
-        "ix_executions_workflow_id", "executions", ["workflow_id"], unique=False
-    )
-    op.create_table(
-        "execution_logs",
-        sa.Column("id", sa.INTEGER(), autoincrement=True, nullable=False),
-        sa.Column("execution_id", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column("log", sa.TEXT(), autoincrement=False, nullable=False),
-        sa.Column("status", sa.VARCHAR(), autoincrement=False, nullable=False),
-        sa.Column(
-            "created_at", postgresql.TIMESTAMP(), autoincrement=False, nullable=False
-        ),
-        sa.ForeignKeyConstraint(
-            ["execution_id"],
-            ["executions.id"],
-            name="execution_logs_execution_id_fkey",
-            ondelete="CASCADE",
-        ),
-        sa.PrimaryKeyConstraint("id", name="execution_logs_pkey"),
-    )
-    op.create_index(
-        "ix_execution_logs_execution_id",
-        "execution_logs",
-        ["execution_id"],
-        unique=False,
-    )
-    # ### end Alembic commands ###