many updates

FitnessSync/backend/alembic/versions/52a16d820129_add_streams_json.py

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+"""add streams_json to activity
+
+Revision ID: 52a16d820129
+Revises: cc3b223773cb
+Create Date: 2026-01-13 09:40:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = '52a16d820129'
+down_revision = 'e9b8841a1234'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.add_column('activities', sa.Column('streams_json', sa.JSON(), nullable=True))
+
+
+def downgrade() -> None:
+    op.drop_column('activities', 'streams_json')