fix: alembic init setting

Author: PythonToGo

backend/alembic/env.py

@@ -10,7 +10,7 @@
 
 config = context.config
 url = os.getenv("DATABASE_URL")
-if url.startswith("postgresql+asyncpg"):
+if url and url.startswith("postgresql+asyncpg"):
     url = url.replace("postgresql+asyncpg", "postgresql")
 
 config.set_main_option("sqlalchemy.url", url)

backend/alembic/versions/806bfed178bd_initial.py

@@ -0,0 +1,32 @@
+"""Initial
+
+Revision ID: 806bfed178bd
+Revises: 7bfcd3825096
+Create Date: 2025-04-06 11:25:58.040012
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '806bfed178bd'
+down_revision: Union[str, None] = '7bfcd3825096'
+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! ###
+    pass
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    pass
+    # ### end Alembic commands ###