feat(sector_radar): enhance sector radar functionality with active moneyflow and detailed metrics

- Introduced ActiveMoneyflowSource to fetch optional active-order flow, enhancing the sector radar's data capabilities.
- Updated StockFactRecord and DailyAggregateRecord to include pct_change and active_buy_net_amount_yuan for improved financial insights.
- Modified the build process to incorporate active moneyflow data without invalidating main rankings on failure.
- Enhanced the HTTP API to return detailed sector history and metrics, including pct_change and active buy metrics for members.
- Updated tests to validate the new functionality and ensure data integrity across various scenarios.

zhixing-server/migrations/versions/0009_radar_sector_detail.py

@@ -0,0 +1,33 @@
+"""Store source sector detail alongside immutable publication daily inputs."""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0009_radar_sector_detail"
+down_revision: str | None = "0008_radar_detail"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    """Keep all previous rows readable with nullable provider detail."""
+    op.add_column(
+        "sector_radar_daily_aggregate", sa.Column("pct_change", sa.Numeric(), nullable=True)
+    )
+    op.add_column(
+        "sector_radar_daily_aggregate", sa.Column("leading_code", sa.Text(), nullable=True)
+    )
+    op.create_check_constraint(
+        "ck_radar_sector_pct_change_finite",
+        "sector_radar_daily_aggregate",
+        "pct_change IS NULL OR pct_change NOT IN "
+        "('NaN'::numeric, 'Infinity'::numeric, '-Infinity'::numeric)",
+    )
+
+
+def downgrade() -> None:
+    """Remove only the nullable projection; original provider snapshots remain intact."""
+    op.drop_column("sector_radar_daily_aggregate", "leading_code")
+    op.drop_column("sector_radar_daily_aggregate", "pct_change")