feat: add map image site module

alembic/versions/0002_add_map_image.py

@@ -0,0 +1,28 @@
+"""Add map image module table.
+
+Revision ID: 0002_add_map_image
+Revises: 0001_initial_schema
+Create Date: 2026-07-01
+"""
+
+from alembic import op
+from sqlalchemy import inspect
+from app.models import MapImage
+
+
+revision = "0002_add_map_image"
+down_revision = "0001_initial_schema"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    if "MapImage" not in set(inspect(bind).get_table_names()):
+        MapImage.__table__.create(bind)
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    if "MapImage" in set(inspect(bind).get_table_names()):
+        MapImage.__table__.drop(bind)