Checkpoint React frontend migration

backend/alembic/versions/20260405_000004_report_schedules.py

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+"""add persistent report schedules
+
+Revision ID: 20260405_000004
+Revises: 20260404_000003
+Create Date: 2026-04-05 09:00:00
+"""
+
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = "20260405_000004"
+down_revision: Union[str, None] = "20260404_000003"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "report_schedules",
+        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
+        sa.Column("schedule_id", sa.String(length=36), nullable=False),
+        sa.Column("report_type", sa.String(length=50), nullable=False),
+        sa.Column("schedule", sa.String(length=20), nullable=False),
+        sa.Column("tryout_ids", sa.JSON(), nullable=False),
+        sa.Column("website_id", sa.Integer(), nullable=False),
+        sa.Column("recipients", sa.JSON(), nullable=False),
+        sa.Column("format", sa.String(length=10), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("last_run", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("next_run", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("is_active", sa.Boolean(), nullable=False),
+        sa.ForeignKeyConstraint(["website_id"], ["websites.id"], ondelete="CASCADE", onupdate="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("schedule_id"),
+    )
+    op.create_index("ix_report_schedules_schedule_id", "report_schedules", ["schedule_id"], unique=True)
+    op.create_index("ix_report_schedules_website_id", "report_schedules", ["website_id"], unique=False)
+    op.create_index(
+        "ix_report_schedules_website_active",
+        "report_schedules",
+        ["website_id", "is_active"],
+        unique=False,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_report_schedules_website_active", table_name="report_schedules")
+    op.drop_index("ix_report_schedules_website_id", table_name="report_schedules")
+    op.drop_index("ix_report_schedules_schedule_id", table_name="report_schedules")
+    op.drop_table("report_schedules")