style: apply ruff format to fixtures/sample.alembic.py

Addresses automated code-review ruff format warning. Normalizes string quotes and table creation formatting per project ruff config.

Author: Hermes Senior Dev

fixtures/sample.alembic.py

@@ -4,24 +4,26 @@
 Revises:
 Create Date: 2026-05-15 03:00:00.000000
 """
+
 import sqlalchemy as sa
 from alembic import op
 
 # revision identifiers, used by Alembic.
-revision = 'sample'
+revision = "sample"
 down_revision = None
 
 
 def upgrade() -> None:
-    op.create_table('users',
-        sa.Column('id', sa.Integer(), primary_key=True),
-        sa.Column('name', sa.String(100), nullable=False),
-        sa.Column('email', sa.String(255), nullable=False, unique=True),
-        sa.Column('role', sa.Enum('admin', 'editor', 'viewer'), nullable=False),
-        sa.Column('is_active', sa.Boolean(), server_default=True),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
+    op.create_table(
+        "users",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("name", sa.String(100), nullable=False),
+        sa.Column("email", sa.String(255), nullable=False, unique=True),
+        sa.Column("role", sa.Enum("admin", "editor", "viewer"), nullable=False),
+        sa.Column("is_active", sa.Boolean(), server_default=True),
+        sa.Column("created_at", sa.DateTime(), server_default=sa.func.now()),
     )
 
 
 def downgrade() -> None:
-    op.drop_table('users')
+    op.drop_table("users")