feat(data): akshare 低频 5 schtask wrapper+register+verify(spec §14.5 A+B/C)

5 wrapper(ak_eod daily19:00估值+财务摘要/ak_quarter财报季三表+预告快报/
ak_events daily19:30龙虎榜+大宗+两融+解禁 per-date当日/ak_stock weekly周六
北向+股本+十大股东/index_monthly 16号成份股3源+migrate+merge)+register_akshare
_schtasks(/m APR,MAY,SEP,NOV财报季)+verify_akshare_e2e; 均unset proxy+夜间避封IP

scripts/data_platform/ak_quarter_wrapper.ps1

@@ -0,0 +1,12 @@
+# ak_quarter_wrapper.ps1 — sanguo-ak-quarter schtask wrapper (财报季 APR/MAY/SEP/NOV 02:00 akshare 三表+预告/快报 --force)
+# balance+income+cashflow+forecast+express; per-stock 全量慢(5500×5), 财报季月夜间跑
+$env:http_proxy = ''
+$env:https_proxy = ''
+$env:all_proxy = ''
+Set-Location C:\sanguo_vnpy_v2
+$ts = Get-Date -Format 'yyyyMMdd_HHmmss'
+$logDir = 'C:\sanguo_vnpy_v2\data\migration_logs'
+if (-not (Test-Path $logDir)) { New-Item -ItemType Directory -Path $logDir -Force | Out-Null }
+$log = Join-Path $logDir "ak_quarter_$ts.txt"
+C:\Python310\python.exe -X utf8 C:\sanguo_vnpy_v2\scripts\data_platform\akshare_static_download.py --types balance,income,cashflow,forecast,express --force *>> $log
+exit $LASTEXITCODE