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.

.trellis/tasks/09-06-capital-radar-daily-detail/research/verify_http.py

@@ -0,0 +1,27 @@
+"""Verify API facts against independently calculated persisted real data."""
+import json
+from decimal import Decimal
+from pathlib import Path
+from urllib.request import urlopen
+
+root='http://127.0.0.1:8016/api/v1/sector-radar/'
+d=json.load(urlopen(root+'sectors/concept/BK1147.DC/detail?trade_date=2026-09-04'))
+assert d['status']=='success'
+assert len(d['members'])==14
+assert Decimal(d['pct_change'])==Decimal('1.82')
+assert sum(Decimal(m['net_amount_yuan']) for m in d['members'])==Decimal('485456500')
+assert sum(Decimal(m['active_buy_net_amount_yuan']) for m in d['members'])==Decimal('-255455700')
+assert Decimal(d['summary']['amount']['metric_value'])==Decimal('4.854565')
+# Storage uses 12 fractional digits for persisted metric observations.
+assert abs(Decimal(d['summary']['ratio']['metric_value'])-Decimal('0.18560945649159168662'))<Decimal('1e-12')
+assert d['history']['available_days']==1
+assert len(d['history']['points'])==30
+assert d['summary']['swing']['missing'] is True
+assert len(d['leaders']['pct_change']['top'])==5
+for view in ['amount','ratio']:
+ r=json.load(urlopen(root+'rankings?sector_type=concept&view='+view+'&side=top&trade_date=2026-09-04'))['rows'][0]
+ assert Decimal(r['pct_change'])==Decimal('1.82')
+ assert Decimal(r['daily_net_amount_yuan'])==Decimal('485456500')
+ assert r['on_list_count']==1
+Path(__file__).with_name('verified-detail.json').write_text(json.dumps(d,ensure_ascii=False,indent=2))
+print('PASS: real persisted SPD data matches detail and both ranking APIs; 14 members, 30 slots / 1 available day, absent swing remains null.')