fix: make migrations idempotent with if_not_exists

Add if_not_exists=True to CREATE TABLE operations in migrations
0003 and 0004. This prevents DuplicateTableError when migrations
are re-run on databases where tables were partially created.

apps/api/alembic/versions/0003_user_configs.py

@@ -27,7 +27,8 @@ def upgrade() -> None:
         sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
         sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
         sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('user_id')
+        sa.UniqueConstraint('user_id'),
+        if_not_exists=True,
     )
 
 

apps/api/alembic/versions/0004_tool_types.py

@@ -42,6 +42,7 @@ def upgrade() -> None:
             onupdate=sa.text("now()"),
             nullable=False,
         ),
+        if_not_exists=True,
     )