diff --git a/scripts/data_platform/_launch_15m.bat b/scripts/data_platform/_launch_15m.bat
new file mode 100644
index 0000000..0a15cbb
--- /dev/null
+++ b/scripts/data_platform/_launch_15m.bat
@@ -0,0 +1,6 @@
+@echo off
+REM Launch download_15m_xtdata.py detached. Logs to data\minute_15\download.log
+cd /d C:\sanguo_vnpy_v2\scripts\data_platform
+set PYTHONIOENCODING=utf-8
+C:\Python310\python.exe -X utf8 download_15m_xtdata.py > C:\sanguo_vnpy_v2\data\minute_15\download.log 2>&1
+exit /b %ERRORLEVEL%
diff --git a/scripts/data_platform/_run_build.ps1 b/scripts/data_platform/_run_build.ps1
new file mode 100644
index 0000000..ff2f24b
--- /dev/null
+++ b/scripts/data_platform/_run_build.ps1
@@ -0,0 +1,9 @@
+# schtasks /ru SYSTEM 下跑 build_daily_from_xtdata.py 的 wrapper。
+# 输出 tee 到日志，便于 ssh 断开后看进度。不依赖工作目录（脚本内 ROOT 硬编码）。
+$ErrorActionPreference = 'Continue'
+$log = 'C:\sanguo_vnpy_v2\data\xtdata_build.log'
+$py = 'C:\Python310\python.exe'
+$script = 'C:\sanguo_vnpy_v2\scripts\data_platform\build_daily_from_xtdata.py'
+"=== BUILD START $(Get-Date -Format o) ===" | Out-File -FilePath $log -Encoding utf8
+& $py -X utf8 $script *>&1 | Tee-Object -FilePath $log -Append
+"=== BUILD END $(Get-Date -Format o) exit=$LASTEXITCODE ===" | Out-File -FilePath $log -Encoding utf8 -Append
diff --git a/scripts/data_platform/_run_daily.ps1 b/scripts/data_platform/_run_daily.ps1
new file mode 100644
index 0000000..a5088a4
--- /dev/null
+++ b/scripts/data_platform/_run_daily.ps1
@@ -0,0 +1,272 @@
+# schtasks 每日定时跑：下载日线 → 灌库 → 校验（串联，按退出码守卫）。收盘后触发（如 16:30）。
+# 下载失败绝不灌库；灌库失败绝不校验；校验失败 schtask LastTaskResult 反映为 1。
+$ErrorActionPreference = 'Continue'
+$log = 'C:\sanguo_vnpy_v2\data\daily_update.log'
+$import_log = 'C:\sanguo_vnpy_v2\data\import_db.log'
+$validate_log = 'C:\sanguo_vnpy_v2\data\validate.log'
+$minute_log = 'C:\sanguo_vnpy_v2\data\minute_update.log'
+$minute_import_log = 'C:\sanguo_vnpy_v2\data\minute_import.log'
+$minute_validate_log = 'C:\sanguo_vnpy_v2\data\minute_validate.log'
+$py = 'C:\Python310\python.exe'
+$download_script = 'C:\sanguo_vnpy_v2\scripts\data_platform\daily_update_xtdata.py'
+$import_script = 'C:\sanguo_vnpy_v2\scripts\data_platform\import_vnpy_daily_fast.py'
+$validate_script = 'C:\sanguo_vnpy_v2\scripts\data_platform\validate_import.py'
+$minute_import_script = 'C:\sanguo_vnpy_v2\scripts\data_platform\import_vnpy_minute_fast.py'
+
+# 全市场 5m/15m 增量下载脚本（inline，xtquant 单线程 paced，先 5m 后 15m）
+# 只下最近 7 天，已存在且 max(datetime)>=today 则跳过该 code。
+$minute_incr_script = @"
+import os, sys, time, datetime as dt
+import pandas as pd
+from xtquant import xtdata as xd
+
+ROOT = r'C:\sanguo_vnpy_v2'
+LOOKBACK_DAYS = 7
+END = dt.datetime.now().strftime('%Y%m%d')
+START = (dt.datetime.now() - dt.timedelta(days=LOOKBACK_DAYS)).strftime('%Y%m%d')
+TODAY = dt.datetime.now().strftime('%Y-%m-%d')
+RAW_5M = os.path.join(ROOT, 'data', 'minute_5', 'raw')
+RAW_15M = os.path.join(ROOT, 'data', 'minute_15', 'raw')
+SLEEP_5M = 0.05
+SLEEP_15M = 0.2
+PROGRESS_EVERY = 200
+
+def log(m):
+    print(f'[INCR-MIN {time.time():.0f}] {m}', flush=True)
+
+def parse_dt_index(idx):
+    s = pd.Series([str(i) for i in idx]).str.slice(0, 14)
+    return pd.to_datetime(s, format='%Y%m%d%H%M%S', errors='coerce')
+
+def to_pdf(df):
+    return pd.DataFrame({
+        'datetime': parse_dt_index(df.index),
+        'open': df['open'].astype(float).values,
+        'high': df['high'].astype(float).values,
+        'low': df['low'].astype(float).values,
+        'close': df['close'].astype(float).values,
+        'volume': (df['volume'].astype(float) * 100.0).values,
+    }).dropna(subset=['datetime']).sort_values('datetime').reset_index(drop=True)
+
+def atomic_write(path, df):
+    os.makedirs(os.path.dirname(path), exist_ok=True)
+    tmp = path + '.tmp'
+    df.to_parquet(tmp, index=False)
+    os.replace(tmp, path)
+
+def fetch(code, period):
+    r = xd.get_market_data_ex([], [code], period=period, start_time=START,
+                              end_time=END, dividend_type='none')
+    return r.get(code) if r else None
+
+def process_one(code, period, raw_dir):
+    sym, exc = code.split('.')
+    raw_path = os.path.join(raw_dir, f'{sym}.{exc}_{period}.parquet')
+    # 断点续传：已存在且 max(datetime)>=today 则跳过（今天已更新过）
+    if os.path.exists(raw_path):
+        try:
+            old = pd.read_parquet(raw_path, columns=['datetime'])
+            if len(old):
+                last_dt = str(old['datetime'].max())[:10]
+                if last_dt >= TODAY:
+                    return 'skipped', len(old)
+        except Exception:
+            pass
+    # 单只 download（ret=None 正常，看后续 get bars）
+    try:
+        xd.download_history_data(code, period, START, END)
+    except Exception as e:
+        return f'dl_err:{e}', 0
+    # get raw → merge 旧文件（保留历史，仅追加/覆盖最近 7 天）
+    try:
+        rdf = fetch(code, period)
+        if rdf is None or not len(rdf):
+            return 'no_data', 0
+        pdf = to_pdf(rdf)
+        if not len(pdf):
+            return 'empty_pdf', 0
+        if os.path.exists(raw_path):
+            try:
+                old = pd.read_parquet(raw_path)
+                merged = (pd.concat([old, pdf])
+                          .drop_duplicates('datetime', keep='last')
+                          .sort_values('datetime')
+                          .reset_index(drop=True))
+            except Exception:
+                merged = pdf
+        else:
+            merged = pdf
+        atomic_write(raw_path, merged)
+        return 'ok', len(merged)
+    except Exception as e:
+        return f'write_err:{e}', 0
+
+def phase(period, raw_dir, sleep_s, universe):
+    log(f'PHASE {period} START n={len(universe)} window={START}~{END}')
+    ok = skip = fail = 0
+    for i, code in enumerate(universe):
+        try:
+            status, n = process_one(code, period, raw_dir)
+            if status == 'ok':
+                ok += 1
+            elif status == 'skipped':
+                skip += 1
+            else:
+                fail += 1
+                if fail <= 5:
+                    log(f'  {code} {period} {status}')
+        except Exception as e:
+            fail += 1
+            if fail <= 5:
+                log(f'  {code} {period} exc: {e}')
+        if (i + 1) % PROGRESS_EVERY == 0 or (i + 1) == len(universe):
+            log(f'  {period} {i+1}/{len(universe)} ok={ok} skip={skip} fail={fail}')
+        time.sleep(sleep_s)
+    log(f'PHASE {period} DONE ok={ok} skip={skip} fail={fail}')
+    return ok, skip, fail
+
+def main():
+    log(f'START window={START}~{END} today={TODAY}')
+    try:
+        u = xd.get_stock_list_in_sector('沪深A股') or []
+    except Exception as e:
+        log(f'FATAL get_stock_list: {e}')
+        os._exit(2)
+    if not u:
+        log('FATAL: empty universe (miniQMT 未连?)')
+        os._exit(2)
+    log(f'universe={len(u)}')
+    ok5, skip5, fail5 = phase('5m', RAW_5M, SLEEP_5M, u)
+    ok15, skip15, fail15 = phase('15m', RAW_15M, SLEEP_15M, u)
+    total_fail = fail5 + fail15
+    log(f'INCR DONE 5m(ok={ok5},skip={skip5},fail={fail5}) '
+        f'15m(ok={ok15},skip={skip15},fail={fail15}) total_fail={total_fail}')
+    sys.stdout.flush()
+    # 个别股失败容忍（如新上市/退市），致命才退出 1
+    os._exit(0 if total_fail < len(u) else 1)
+
+main()
+"@
+
+# 全市场 5m/15m 增量校验脚本（inline）
+$minute_validate_script = @"
+import os, sys, datetime as dt, sqlite3
+import pandas as pd
+DB = r'C:\sanguo_vnpy_v2\data\quant_trading.db'
+TODAY = dt.datetime.now().strftime('%Y-%m-%d')
+SAMPLES = ['600519', '000001', '000858']
+EXPECT_INTERVALS = ['5m', '15m']
+
+def log(m):
+    print(f'[VAL-MIN] {m}', flush=True)
+
+def main():
+    if not os.path.exists(DB):
+        log(f'FAIL: DB not found {DB}')
+        sys.exit(1)
+    conn = sqlite3.connect(DB)
+    today = TODAY
+    log(f'today={today}')
+    ok = True
+    for iv in EXPECT_INTERVALS:
+        row = conn.execute(
+            'SELECT MAX(datetime), COUNT(*) FROM dbbardata WHERE interval=?', (iv,)
+        ).fetchone()
+        max_dt, total = row
+        max_date = (max_dt or '')[:10]
+        iv_ok = (max_date == today) and (total or 0) > 0
+        log(f'[{iv}] total={total} max_dt={max_dt} max_date={max_date} '
+            f'today_match={max_date == today} -> {"PASS" if iv_ok else "FAIL"}')
+        if not iv_ok:
+            ok = False
+    for sym in SAMPLES:
+        row = conn.execute(
+            "SELECT COUNT(*) FROM dbbardata WHERE symbol=? AND interval='5m' "
+            "AND datetime LIKE ?", (sym, today + '%')
+        ).fetchone()
+        n = row[0] or 0
+        log(f'sample {sym} 5m today_bars={n} -> {"PASS" if n > 0 else "FAIL"}')
+        if n <= 0:
+            ok = False
+    conn.close()
+    log(f'OVERALL {"PASS" if ok else "FAIL"}')
+    sys.exit(0 if ok else 1)
+
+main()
+"@
+
+"=== DAILY UPDATE START $(Get-Date -Format o) ===" | Out-File -FilePath $log -Encoding utf8
+& $py -X utf8 $download_script *>&1 | Tee-Object -FilePath $log -Append
+$download_exit = $LASTEXITCODE
+"=== DAILY UPDATE END $(Get-Date -Format o) exit=$download_exit ===" | Out-File -FilePath $log -Encoding utf8 -Append
+
+if ($download_exit -ne 0) {
+    "=== IMPORT SKIPPED (download failed) $(Get-Date -Format o) ===" | Out-File -FilePath $log -Encoding utf8 -Append
+    exit 1
+}
+
+# 灌库（全量 2010 起，幂等 INSERT OR REPLACE，重跑安全）
+$env:VNPY_DB_PATH = 'C:\sanguo_vnpy_v2\data\quant_trading.db'
+$env:DAILY_DIR = 'C:\sanguo_vnpy_v2\data\raw'
+"=== IMPORT START $(Get-Date -Format o) ===" | Out-File -FilePath $import_log -Encoding utf8
+& $py -X utf8 $import_script --start-year 2010 *>&1 | Tee-Object -FilePath $import_log -Append
+$import_exit = $LASTEXITCODE
+"=== IMPORT DONE $(Get-Date -Format o) exit=$import_exit ===" | Out-File -FilePath $import_log -Encoding utf8 -Append
+"=== IMPORT DONE exit=$import_exit ===" | Out-File -FilePath $log -Encoding utf8 -Append
+
+if ($import_exit -ne 0) {
+    "=== VALIDATE SKIPPED (import failed) $(Get-Date -Format o) ===" | Out-File -FilePath $log -Encoding utf8 -Append
+    exit 1
+}
+
+# 灌后校验
+"=== VALIDATE START $(Get-Date -Format o) ===" | Out-File -FilePath $validate_log -Encoding utf8
+& $py -X utf8 $validate_script *>&1 | Tee-Object -FilePath $validate_log -Append
+$validate_exit = $LASTEXITCODE
+"=== VALIDATE DONE $(Get-Date -Format o) exit=$validate_exit ===" | Out-File -FilePath $validate_log -Encoding utf8 -Append
+"=== VALIDATE DONE exit=$validate_exit ===" | Out-File -FilePath $log -Encoding utf8 -Append
+
+# ===================== 5m / 15m 增量下载 → 灌库 → 校验 =====================
+# 守卫:日线 validate 失败仍跑 minute(独立链路),但 daily 失败码在最终 exit 中体现
+$env:VNPY_DB_PATH = 'C:\sanguo_vnpy_v2\data\quant_trading.db'
+$minute_final_exit = 0
+
+"=== MINUTE DOWNLOAD START $(Get-Date -Format o) ===" | Out-File -FilePath $minute_log -Encoding utf8
+"DiskFree_GB=$((Get-PSDrive C).Free / 1GB)" | Out-File -FilePath $minute_log -Encoding utf8 -Append
+# inline python via stdin(约束:不新建文件,inline 在 ps1 内)
+$minute_incr_script | & $py -X utf8 - *>&1 | Tee-Object -FilePath $minute_log -Append
+$minute_download_exit = $LASTEXITCODE
+"=== MINUTE DOWNLOAD END $(Get-Date -Format o) exit=$minute_download_exit ===" | Out-File -FilePath $minute_log -Encoding utf8 -Append
+"=== MINUTE DOWNLOAD DONE exit=$minute_download_exit ===" | Out-File -FilePath $log -Encoding utf8 -Append
+
+if ($minute_download_exit -ne 0) {
+    "=== MINUTE IMPORT SKIPPED (download failed) $(Get-Date -Format o) ===" | Out-File -FilePath $minute_log -Encoding utf8 -Append
+    $minute_final_exit = $minute_download_exit
+} else {
+    # 灌库(全量 upsert 已存在+新增,幂等)
+    "=== MINUTE IMPORT START $(Get-Date -Format o) ===" | Out-File -FilePath $minute_import_log -Encoding utf8
+    & $py -X utf8 $minute_import_script *>&1 | Tee-Object -FilePath $minute_import_log -Append
+    $minute_import_exit = $LASTEXITCODE
+    "=== MINUTE IMPORT DONE $(Get-Date -Format o) exit=$minute_import_exit ===" | Out-File -FilePath $minute_import_log -Encoding utf8 -Append
+    "=== MINUTE IMPORT DONE exit=$minute_import_exit ===" | Out-File -FilePath $log -Encoding utf8 -Append
+
+    if ($minute_import_exit -ne 0) {
+        "=== MINUTE VALIDATE SKIPPED (import failed) $(Get-Date -Format o) ===" | Out-File -FilePath $minute_log -Encoding utf8 -Append
+        $minute_final_exit = $minute_import_exit
+    } else {
+        # 灌后校验:5m/15m max(datetime)==today + 抽样 bars>0
+        "=== MINUTE VALIDATE START $(Get-Date -Format o) ===" | Out-File -FilePath $minute_validate_log -Encoding utf8
+        $minute_validate_script | & $py -X utf8 - *>&1 | Tee-Object -FilePath $minute_validate_log -Append
+        $minute_validate_exit = $LASTEXITCODE
+        "=== MINUTE VALIDATE DONE $(Get-Date -Format o) exit=$minute_validate_exit ===" | Out-File -FilePath $minute_validate_log -Encoding utf8 -Append
+        "=== MINUTE VALIDATE DONE exit=$minute_validate_exit ===" | Out-File -FilePath $log -Encoding utf8 -Append
+        $minute_final_exit = $minute_validate_exit
+    }
+}
+
+"DiskFree_GB_end=$((Get-PSDrive C).Free / 1GB)" | Out-File -FilePath $log -Encoding utf8 -Append
+
+# 总 exit:daily 与 minute 任一非零则非零(对应 schtasks LastTaskResult 反映状态)
+$final_exit = $validate_exit
+if ($minute_final_exit -ne 0) { $final_exit = $minute_final_exit }
+exit $final_exit
diff --git a/scripts/data_platform/_run_import.ps1 b/scripts/data_platform/_run_import.ps1
new file mode 100644
index 0000000..0f47052
--- /dev/null
+++ b/scripts/data_platform/_run_import.ps1
@@ -0,0 +1,6 @@
+$env:VNPY_DB_PATH = "C:\sanguo_vnpy_v2\data\quant_trading.db"
+$env:DAILY_DIR = "C:\sanguo_vnpy_v2\data\raw"
+$log = "C:\sanguo_vnpy_v2\data\import_db.log"
+"=== IMPORT START $(Get-Date -Format o) ===" | Out-File -FilePath $log -Encoding utf8
+& "C:\Python310\python.exe" -X utf8 "C:\sanguo_vnpy_v2\scripts\data_platform\import_vnpy_daily_fast.py" --start-year 2010 *>&1 | Tee-Object -FilePath $log -Append
+"=== IMPORT DONE $(Get-Date -Format o) exit=$LASTEXITCODE ===" | Out-File -FilePath $log -Encoding utf8 -Append
diff --git a/scripts/data_platform/download_15m_xtdata.py b/scripts/data_platform/download_15m_xtdata.py
new file mode 100644
index 0000000..c603858
--- /dev/null
+++ b/scripts/data_platform/download_15m_xtdata.py
@@ -0,0 +1,637 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""全市场 5m + 15m 双周期一次性下载（raw + qfq 双源）。VPS 后台跑（需 miniQMT 常驻）。
+
+【Main Agent 实证真根因 — 勿再质疑】
+1. download_history_data / download_history_data2 返回 None 是正常的，绝非失败！
+   成败只看下一步 get_market_data_ex 的 bars 数（>0=成功）。
+2. 15m 依赖 5m 基础数据：先下 5m 再下 15m（顺序不可反、不可并行）。
+   实证：先 5m=11670 bars、再 15m=3890 bars（全板块一致）。
+3. 全市场 1m/5m 直接可下（不需订阅、不是权限问题）。
+
+【复权机制】download 只下原始 none 数据一次，读时用 dividend_type='front' 转 qfq。
+   每周期 download 一次，raw/qfq 两份在读时分流出。别为 qfq 单独 download。
+   （同 daily_update_xtdata.py：download_history_data2 批量 → get_market_data_ex 分别
+   读 none/front 两份）。
+
+【两轮下载顺序】
+   Phase 1: 全市场 download_history_data2 批量下 5m（→ xtdata 本地缓存）
+   Phase 1.5: 逐只 get_market_data_ex 读 5m（raw + qfq）→ 写 parquet
+   Phase 2: 全市场 download_history_data2 批量下 15m（依赖 5m 基础）
+   Phase 2.5: 逐只 get_market_data_ex 读 15m（raw + qfq）→ 写 parquet
+   Phase 3: 校验 → 写 _result.json
+
+【存储】C:\\sanguo_vnpy_v2\\data\\minute_5\\{raw,qfq}\\<code>_5m.parquet
+       C:\\sanguo_vnpy_v2\\data\\minute_15\\{raw,qfq}\\<code>_15m.parquet
+   schema: datetime,open,high,low,close,volume（volume ×100 手→股）。
+
+【断点续传】文件已存在且 bars ≥ MIN_BARS_RESUME_{5M,15M} 则跳过该只写盘。
+【单线程 paced】批量 download_history_data2 服务端内部并行；轮次间 sleep 2s。
+【进度】_progress.json 每 200 只刷新。
+
+用法（VPS）：
+  C:\\Python310\\python.exe -X utf8 download_15m_xtdata.py
+ETF 本轮未下（universe 取"沪深A股"约 5201 只）。
+退出码：0=PASS；1=FAIL 或有失败；2=致命错误（universe 空 / miniQMT 未连）。
+"""
+import os
+import sys
+import json
+import time
+import random
+import datetime as dt
+from typing import Any
+
+import pandas as pd
+
+ROOT = r"C:\sanguo_vnpy_v2"
+DATA_5M = os.path.join(ROOT, "data", "minute_5")
+DATA_15M = os.path.join(ROOT, "data", "minute_15")
+RAW_5M = os.path.join(DATA_5M, "raw")
+QFQ_5M = os.path.join(DATA_5M, "qfq")
+RAW_15M = os.path.join(DATA_15M, "raw")
+QFQ_15M = os.path.join(DATA_15M, "qfq")
+PROGRESS_FILE = os.path.join(DATA_15M, "_progress.json")
+RESULT_FILE = os.path.join(DATA_15M, "_result.json")
+CURSOR_FILE = os.path.join(DATA_15M, "_cursor.json")     # crash 前正在处理的股票（poison-pill 探测）
+BLOCKLIST_FILE = os.path.join(DATA_15M, "_blocklist.json")  # 累积 poison-pill 名单（跨重启）
+
+START_TIME = "20250717"
+END_TIME = dt.datetime.now().strftime("%Y%m%d")
+
+# 实证预期：5m≈11670 bars、15m≈3890 bars（全板块一致，2025-07-17~today ~240 交易日）
+EXPECTED_BARS_5M = 11670
+EXPECTED_BARS_15M = 3890
+MIN_BARS_RESUME_5M = 11400       # 断点续传阈值（允许 ±2.5%）
+MIN_BARS_RESUME_15M = 3888        # 15m 断点续传阈值（接近完整 3890，旧文件 600000=2040 会重下）
+EXPECTED_BARS_PER_DAY_5M = 48    # A 股 4h 交易日 × 12 bar/h
+EXPECTED_BARS_PER_DAY_15M = 16   # A 股 4h 交易日 × 4 bar/h
+
+DOWNLOAD_BATCH = 200             # download_history_data2 批量大小（与 daily_update_xtdata 一致）
+SLEEP_BETWEEN_BATCH = 2.0        # 批次间 sleep（不猛打券商后端）
+SLEEP_BETWEEN_PHASES = 5.0       # 5m → 15m 轮次切换间 sleep
+SLEEP_BETWEEN_STOCKS_15M = 0.2   # 15m 逐只 download 间隔（paced，绝不并发）
+PROGRESS_FLUSH_EVERY = 200       # 进度文件刷新间隔（写盘阶段每 N 只）
+FAILED_LIST_CAP = 200            # _progress.json 内 failed 列表截断
+DISK_ALERT_GB = 20.0             # 磁盘 free < 此值告警
+
+from xtquant import xtdata as xd
+
+T0 = time.time()
+
+
+def log(m: str) -> None:
+    print(f"[15M {time.time()-T0:.0f}s] {m}", flush=True)
+
+
+def disk_free_gb() -> float:
+    """C:\\ 剩余空间 GB（shutil 跨平台）。失败返回 -1。"""
+    try:
+        import shutil
+        return shutil.disk_usage("C:\\").free / (1024 ** 3)
+    except Exception:  # noqa: BLE001
+        return -1.0
+
+
+def count_parquet(directory: str, suffix: str) -> int:
+    if not os.path.isdir(directory):
+        return 0
+    try:
+        return len([f for f in os.listdir(directory) if f.endswith(f"_{suffix}.parquet")])
+    except Exception:  # noqa: BLE001
+        return 0
+
+
+def load_blocklist() -> set[str]:
+    """读累积 poison-pill 名单。crash 后 wrapper 重启时，cursor 里那只会被加入此处。"""
+    if not os.path.exists(BLOCKLIST_FILE):
+        return set()
+    try:
+        with open(BLOCKLIST_FILE, "r", encoding="utf-8") as f:
+            return set(json.load(f).get("blocklist", []))
+    except Exception:  # noqa: BLE001
+        return set()
+
+
+def add_to_blocklist(code: str, reason: str) -> None:
+    """把 poison-pill 股加入持久 blocklist（跨重启累积）。"""
+    bl = load_blocklist()
+    if code in bl:
+        return
+    bl.add(code)
+    payload = {
+        "blocklist": sorted(bl),
+        "last_added": code,
+        "last_reason": reason,
+        "last_added_at": dt.datetime.now().isoformat(),
+        "count": len(bl),
+    }
+    tmp = BLOCKLIST_FILE + ".tmp"
+    with open(tmp, "w", encoding="utf-8") as f:
+        json.dump(payload, f, ensure_ascii=False, indent=2)
+    os.replace(tmp, BLOCKLIST_FILE)
+
+
+def write_cursor(code: str) -> None:
+    """download_history_data 调用前写 cursor。crash 后重启时读 cursor → 该 code 是 poison-pill。"""
+    try:
+        tmp = CURSOR_FILE + ".tmp"
+        with open(tmp, "w", encoding="utf-8") as f:
+            json.dump({"processing": code, "ts": dt.datetime.now().isoformat()}, f,
+                      ensure_ascii=False)
+        os.replace(tmp, CURSOR_FILE)
+    except Exception:  # noqa: BLE001
+        pass
+
+
+def clear_cursor() -> None:
+    """单只处理完清除 cursor（成功路径）。"""
+    try:
+        if os.path.exists(CURSOR_FILE):
+            os.remove(CURSOR_FILE)
+    except Exception:  # noqa: BLE001
+        pass
+
+
+def read_stale_cursor() -> str | None:
+    """启动时读 cursor。若存在 → 上次 crash 时正在处理的那只 = poison-pill。"""
+    if not os.path.exists(CURSOR_FILE):
+        return None
+    try:
+        with open(CURSOR_FILE, "r", encoding="utf-8") as f:
+            return json.load(f).get("processing")
+    except Exception:  # noqa: BLE001
+        return None
+
+
+def parse_dt_index(idx) -> pd.DatetimeIndex:
+    """xtdata 时间索引（14 位 str/int 'yyyymmddHHMMSS' 或带毫秒）→ DatetimeIndex。"""
+    s = pd.Series([str(i) for i in idx]).str.slice(0, 14)
+    return pd.to_datetime(s, format="%Y%m%d%H%M%S", errors="coerce")
+
+
+def to_pdf(df: pd.DataFrame) -> pd.DataFrame:
+    """xtdata DataFrame → 统一 schema。volume ×100 手→股。"""
+    return pd.DataFrame({
+        "datetime": parse_dt_index(df.index),
+        "open": df["open"].astype(float).values,
+        "high": df["high"].astype(float).values,
+        "low": df["low"].astype(float).values,
+        "close": df["close"].astype(float).values,
+        "volume": (df["volume"].astype(float) * 100.0).values,  # xtdata 手→股（memory 铁证）
+    }).dropna(subset=["datetime"]).sort_values("datetime").reset_index(drop=True)
+
+
+def atomic_write(path: str, df: pd.DataFrame) -> None:
+    os.makedirs(os.path.dirname(path), exist_ok=True)
+    tmp = path + ".tmp"
+    df.to_parquet(tmp, index=False)
+    os.replace(tmp, path)
+
+
+def write_progress(payload: dict[str, Any]) -> None:
+    payload = {**payload, "elapsed_sec": round(time.time() - T0, 1),
+               "updated": dt.datetime.now().isoformat()}
+    os.makedirs(os.path.dirname(PROGRESS_FILE), exist_ok=True)
+    tmp = PROGRESS_FILE + ".tmp"
+    with open(tmp, "w", encoding="utf-8") as f:
+        json.dump(payload, f, ensure_ascii=False, indent=2)
+    os.replace(tmp, PROGRESS_FILE)
+
+
+def fetch(code: str, period: str, dividend_type: str) -> pd.DataFrame | None:
+    """从 xtdata 本地缓存 get 出 bars。返回原始 xtdata DataFrame 或 None。"""
+    r = xd.get_market_data_ex([], [code], period=period, start_time=START_TIME,
+                              end_time=END_TIME, dividend_type=dividend_type)
+    return r.get(code) if r else None
+
+
+def batch_download(period: str, universe: list[str]) -> tuple[int, int]:
+    """批量 download_history_data2 全市场 → xtdata 本地缓存。
+
+    成败不看 download 返回/回调，以下一步 get bars 为准（Main Agent 实证）。
+    返回 (n_batches, n_err_batches)。
+    """
+    n_batches = (len(universe) + DOWNLOAD_BATCH - 1) // DOWNLOAD_BATCH
+    err_batches = 0
+
+    def _cb(data: Any, prog: float) -> None:
+        # callback 只 flush 进度，不做成败判定
+        if prog >= 100.0:
+            log(f"  dl_{period} batch done (prog={prog:.1f})")
+
+    for bi in range(n_batches):
+        chunk = universe[bi * DOWNLOAD_BATCH:(bi + 1) * DOWNLOAD_BATCH]
+        try:
+            # download_history_data2 批量版，ret 可能为 None（正常），不看
+            xd.download_history_data2(chunk, period, START_TIME, END_TIME, _cb)
+        except Exception as e:  # noqa: BLE001
+            err_batches += 1
+            log(f"  dl_{period} batch#{bi} err: {e}（继续，单批 fail 不致命）")
+        if (bi + 1) % 5 == 0 or (bi + 1) == n_batches:
+            log(f"  dl_{period} batch {bi+1}/{n_batches} ({(bi+1)*100/n_batches:.1f}%) err_batches={err_batches}")
+        time.sleep(SLEEP_BETWEEN_BATCH)
+    return (n_batches, err_batches)
+
+
+def write_one_period(code: str, period: str, raw_dir: str, qfq_dir: str,
+                     min_bars: int) -> dict[str, Any]:
+    """download 阶段已完成，从 xtdata 缓存 get → 写 raw/qfq parquet。返回 dict。"""
+    raw_path = os.path.join(raw_dir, f"{code}_{period}.parquet")
+    qfq_path = os.path.join(qfq_dir, f"{code}_{period}.parquet")
+    res: dict[str, Any] = {"code": code, "period": period,
+                           "raw_bars": 0, "qfq_bars": 0, "err": None, "skipped": False}
+
+    # 断点续传：两源都已存在且 bar 数 ≥ 阈值 → 跳过
+    if os.path.exists(raw_path) and os.path.exists(qfq_path):
+        try:
+            r_old = pd.read_parquet(raw_path)
+            q_old = pd.read_parquet(qfq_path)
+            if len(r_old) >= min_bars and len(q_old) >= min_bars:
+                res["raw_bars"] = len(r_old)
+                res["qfq_bars"] = len(q_old)
+                res["skipped"] = True
+                return res
+        except Exception:
+            pass  # 文件损坏，下面重读重写
+
+    # get raw (none)
+    try:
+        rdf = fetch(code, period, "none")
+        if rdf is not None and len(rdf):
+            pdf = to_pdf(rdf)
+            if len(pdf):
+                atomic_write(raw_path, pdf)
+                res["raw_bars"] = len(pdf)
+    except Exception as e:  # noqa: BLE001
+        res["err"] = f"raw:{e}"
+
+    # get qfq (front) —— 同份缓存读，不为 qfq 单独 download
+    try:
+        qdf = fetch(code, period, "front")
+        if qdf is not None and len(qdf):
+            pdf = to_pdf(qdf)
+            if len(pdf):
+                atomic_write(qfq_path, pdf)
+                res["qfq_bars"] = len(pdf)
+    except Exception as e:  # noqa: BLE001
+        res["err"] = (res["err"] or "") + f" qfq:{e}"
+
+    return res
+
+
+def write_phase(period: str, universe: list[str], raw_dir: str, qfq_dir: str,
+                min_bars: int, failed: list[dict], done_counter: dict[str, int],
+                counter_key: str) -> int:
+    """逐只 get → 写 raw/qfq。失败（raw_bars=0）记 failed 不中断。返回 done 数。"""
+    done = 0
+    last_stock = "(start)"
+    fail_phase = 0
+    for i, code in enumerate(universe):
+        last_stock = code
+        try:
+            res = write_one_period(code, period, raw_dir, qfq_dir, min_bars)
+            if not res["skipped"] and res["raw_bars"] == 0 and res["qfq_bars"] == 0:
+                failed.append({"code": code, "period": period, "err": res["err"] or "no_data"})
+                fail_phase += 1
+        except Exception as e:  # noqa: BLE001
+            failed.append({"code": code, "period": period, "err": str(e)})
+            fail_phase += 1
+        done = i + 1
+        done_counter[counter_key] = done
+        if done % PROGRESS_FLUSH_EVERY == 0 or done == len(universe):
+            write_progress({
+                "phase": f"write_{period}",
+                "total": len(universe),
+                "done_5m": done_counter.get("5m", 0),
+                "done_15m": done_counter.get("15m", 0),
+                "failed_count": len(failed),
+                "failed": failed[:FAILED_LIST_CAP],
+                "failed_truncated": len(failed) > FAILED_LIST_CAP,
+                "last_stock": last_stock,
+                "pct": round(done * 100 / len(universe), 2),
+            })
+            log(f"  write_{period} {done}/{len(universe)} ({done*100/len(universe):.1f}%) "
+                f"phase_fail={fail_phase} total_fail={len(failed)} last={last_stock}")
+    return done
+
+
+def download_and_write_one_15m(code: str, min_bars: int) -> dict[str, Any]:
+    """15m 逐只 download_history_data(code,'15m',start,end) + get + 写 raw/qfq。
+
+    替代原 batch_download('15m')+write_one_period 组合。成败看 get bars >0
+    （download_history_data 返回 None 是正常，Main Agent 实证）。
+    """
+    raw_path = os.path.join(RAW_15M, f"{code}_15m.parquet")
+    qfq_path = os.path.join(QFQ_15M, f"{code}_15m.parquet")
+    res: dict[str, Any] = {"code": code, "period": "15m",
+                           "raw_bars": 0, "qfq_bars": 0, "err": None, "skipped": False}
+
+    # 断点续传：两源已存在且 bars ≥ 阈值 → 跳过 download/get
+    if os.path.exists(raw_path) and os.path.exists(qfq_path):
+        try:
+            r_old = pd.read_parquet(raw_path)
+            q_old = pd.read_parquet(qfq_path)
+            if len(r_old) >= min_bars and len(q_old) >= min_bars:
+                res["raw_bars"] = len(r_old)
+                res["qfq_bars"] = len(q_old)
+                res["skipped"] = True
+                return res
+        except Exception:
+            pass  # 文件损坏 → 重下
+
+    # 单只 download（ret=None 正常，看后续 get bars）
+    try:
+        xd.download_history_data(code, "15m", START_TIME, END_TIME)
+    except Exception as e:  # noqa: BLE001
+        res["err"] = f"dl:{e}"
+        # 不在此 return——download 报错也可能只是"已存在"，继续 get
+
+    # get raw (none) → 写
+    try:
+        rdf = fetch(code, "15m", "none")
+        if rdf is not None and len(rdf):
+            pdf = to_pdf(rdf)
+            if len(pdf):
+                atomic_write(raw_path, pdf)
+                res["raw_bars"] = len(pdf)
+    except Exception as e:  # noqa: BLE001
+        res["err"] = (res["err"] or "") + f" raw:{e}"
+
+    # get qfq (front) → 写（同份缓存读，不为 qfq 单独 download）
+    try:
+        qdf = fetch(code, "15m", "front")
+        if qdf is not None and len(qdf):
+            pdf = to_pdf(qdf)
+            if len(pdf):
+                atomic_write(qfq_path, pdf)
+                res["qfq_bars"] = len(pdf)
+    except Exception as e:  # noqa: BLE001
+        res["err"] = (res["err"] or "") + f" qfq:{e}"
+
+    return res
+
+
+def phase_15m_per_stock(universe: list[str], failed: list[dict],
+                        done_counter: dict[str, int]) -> int:
+    """15m 逐只 download+write 循环。替代原 Phase 2 (batch_download) + Phase 2.5 (write_phase)。
+
+    单线程 paced（每只 sleep 0.2s），绝不并发。成败看 get bars >0。
+
+    【poison-pill 防护】
+    - 启动时读 _cursor.json：若存在 → 上次 crash 时正在处理的那只 = 嫌疑 poison-pill → 加入 blocklist
+    - 每只 download 前写 cursor，成功后清除
+    - blocklist 内的 code 跳过（记 failed，err=blocked_poison_pill）
+    """
+    # 启动：检查 stale cursor → poison-pill
+    blocklist = load_blocklist()
+    stale = read_stale_cursor()
+    if stale:
+        log(f"  ⚠️ detected stale cursor from crash: {stale} → adding to blocklist")
+        add_to_blocklist(stale, f"crash during download_history_data at {dt.datetime.now().isoformat()}")
+        blocklist = load_blocklist()
+        clear_cursor()
+    if blocklist:
+        log(f"  blocklist ({len(blocklist)}): {sorted(blocklist)[:10]}{'...' if len(blocklist)>10 else ''}")
+
+    done = 0
+    fail_phase = 0
+    last_stock = "(start)"
+    for i, code in enumerate(universe):
+        last_stock = code
+        if code in blocklist:
+            failed.append({"code": code, "period": "15m", "err": "blocked_poison_pill"})
+            fail_phase += 1
+            done = i + 1
+            done_counter["15m"] = done
+            time.sleep(SLEEP_BETWEEN_STOCKS_15M)
+            continue
+        write_cursor(code)  # 标记：即将处理此 code（crash 后重启可识别）
+        try:
+            res = download_and_write_one_15m(code, MIN_BARS_RESUME_15M)
+            if not res["skipped"] and res["raw_bars"] == 0 and res["qfq_bars"] == 0:
+                failed.append({"code": code, "period": "15m", "err": res["err"] or "no_data"})
+                fail_phase += 1
+        except Exception as e:  # noqa: BLE001
+            failed.append({"code": code, "period": "15m", "err": str(e)})
+            fail_phase += 1
+        clear_cursor()  # 成功路径：清除 cursor
+        done = i + 1
+        done_counter["15m"] = done
+        if done % PROGRESS_FLUSH_EVERY == 0 or done == len(universe):
+            dfree = disk_free_gb()
+            write_progress({
+                "phase": "write_15m",
+                "total": len(universe),
+                "done_5m": done_counter.get("5m", 0),
+                "done_15m": done,
+                "failed_count": len(failed),
+                "failed": failed[:FAILED_LIST_CAP],
+                "failed_truncated": len(failed) > FAILED_LIST_CAP,
+                "last_stock": last_stock,
+                "pct": round(done * 100 / len(universe), 2),
+                "disk_free_gb": round(dfree, 2),
+                "blocklist_size": len(blocklist),
+            })
+            log(f"  write_15m {done}/{len(universe)} ({done*100/len(universe):.1f}%) "
+                f"phase_fail={fail_phase} total_fail={len(failed)} last={last_stock} "
+                f"disk_free={dfree:.1f}GB bl={len(blocklist)}")
+            if dfree >= 0 and dfree < DISK_ALERT_GB:
+                log(f"  ⚠️ DISK LOW: {dfree:.1f}GB < {DISK_ALERT_GB}GB")
+        time.sleep(SLEEP_BETWEEN_STOCKS_15M)
+    return done
+
+
+def validate(universe: list[str]) -> dict[str, Any]:
+    """校验 5m + 15m 双周期 → 返回 result dict。"""
+    out: dict[str, Any] = {"periods": {}}
+
+    for period, raw_dir, qfq_dir, expected_bars_per_day, min_bars_floor in [
+        ("5m", RAW_5M, QFQ_5M, EXPECTED_BARS_PER_DAY_5M, 5000),
+        ("15m", RAW_15M, QFQ_15M, EXPECTED_BARS_PER_DAY_15M, 5000),
+    ]:
+        raw_files = [f for f in os.listdir(raw_dir) if f.endswith(f"_{period}.parquet")] \
+            if os.path.isdir(raw_dir) else []
+        qfq_files = [f for f in os.listdir(qfq_dir) if f.endswith(f"_{period}.parquet")] \
+            if os.path.isdir(qfq_dir) else []
+        n_raw = len(raw_files)
+        n_qfq = len(qfq_files)
+
+        total_bars = 0
+        min_dt = None
+        max_dt = None
+        for f in raw_files:
+            try:
+                d = pd.read_parquet(os.path.join(raw_dir, f), columns=["datetime"])
+                if len(d):
+                    total_bars += len(d)
+                    lo = pd.to_datetime(d["datetime"]).min()
+                    hi = pd.to_datetime(d["datetime"]).max()
+                    if min_dt is None or lo < min_dt:
+                        min_dt = lo
+                    if max_dt is None or hi > max_dt:
+                        max_dt = hi
+            except Exception:
+                continue
+
+        # 抽样 5 只校验完整性
+        samples = random.sample(raw_files, min(5, len(raw_files))) if raw_files else []
+        sample_results = []
+        complete_count = 0
+        for sf in samples:
+            try:
+                d = pd.read_parquet(os.path.join(raw_dir, sf))
+                d["_d"] = pd.to_datetime(d["datetime"]).dt.date
+                grp = d.groupby("_d").size()
+                incomplete_days = int((grp < expected_bars_per_day).sum())
+                sample_results.append({
+                    "file": sf, "bars": int(len(d)), "days": int(len(grp)),
+                    "incomplete_days": incomplete_days,
+                    "first": str(d["datetime"].min()),
+                    "last": str(d["datetime"].max()),
+                })
+                if incomplete_days == 0:
+                    complete_count += 1
+            except Exception as e:
+                sample_results.append({"file": sf, "err": str(e)})
+
+        failed_stocks = [c for c in universe if f"{c}_{period}.parquet" not in set(raw_files)]
+
+        min_str = str(min_dt)[:19] if min_dt is not None else None
+        max_str = str(max_dt)[:19] if max_dt is not None else None
+        date_ok = False
+        if min_str and max_str:
+            earliest_limit = "2025-07-20"  # 容忍首日 7/17~7/20 起步
+            latest_floor = (dt.datetime.now() - dt.timedelta(days=5)).strftime("%Y-%m-%d")
+            date_ok = min_str[:10] <= earliest_limit and max_str[:10] >= latest_floor
+
+        reasons = []
+        if n_raw < min_bars_floor:
+            reasons.append(f"raw 文件数 {n_raw} < {min_bars_floor}")
+        if len(samples) > 0 and complete_count < len(samples):
+            reasons.append(f"抽样完整 {complete_count}/{len(samples)}（有缺失日）")
+        if not date_ok:
+            reasons.append(f"日期范围异常: {min_str}~{max_str}")
+
+        verdict = "PASS" if (n_raw >= min_bars_floor
+                             and (len(samples) == 0 or complete_count == len(samples))
+                             and date_ok) else "FAIL"
+
+        out["periods"][period] = {
+            "verdict": verdict,
+            "fail_reasons": reasons,
+            "raw_files": n_raw,
+            "qfq_files": n_qfq,
+            "total_bars": int(total_bars),
+            "min_datetime": min_str,
+            "max_datetime": max_str,
+            "sample_size": len(samples),
+            "sample_complete_count": complete_count,
+            "sample": sample_results,
+            "failed_count": len(failed_stocks),
+            "failed_sample": failed_stocks[:30],
+        }
+
+    overall = "PASS" if all(p["verdict"] == "PASS" for p in out["periods"].values()) else "FAIL"
+    out["verdict"] = overall
+    out["universe_size"] = len(universe)
+    out["generated_at"] = dt.datetime.now().isoformat()
+    return out
+
+
+def main() -> None:
+    log(f"START window={START_TIME}~{END_TIME} (先5m→后15m 两轮批量 download_history_data2)")
+    for d in (RAW_5M, QFQ_5M, RAW_15M, QFQ_15M):
+        os.makedirs(d, exist_ok=True)
+
+    # universe
+    try:
+        u = xd.get_stock_list_in_sector("沪深A股") or []
+    except Exception as e:  # noqa: BLE001
+        log(f"FATAL: get_stock_list err: {e}")
+        os._exit(2)
+    if not u:
+        log("FATAL: empty universe（miniQMT 未连？）")
+        os._exit(2)
+    log(f"universe={len(u)}（沪深A股，ETF 本轮未下）")
+
+    failed: list[dict] = []
+    done_counter = {"5m": 0, "15m": 0}
+
+    write_progress({
+        "phase": "init",
+        "total": len(u),
+        "done_5m": 0, "done_15m": 0,
+        "failed_count": 0, "failed": [], "last_stock": "(init)", "pct": 0.0,
+    })
+
+    # ===================== Phase 1 + 1.5: 5m（已下完则整体跳过） =====================
+    n5r = count_parquet(RAW_5M, "5m")
+    n5q = count_parquet(QFQ_5M, "5m")
+    skip_5m = (n5r >= len(u) and n5q >= len(u))
+    log(f"5m 现状: raw={n5r} qfq={n5q} universe={len(u)} → "
+        f"{'SKIP(已下完)' if skip_5m else 'GO(需下)'} disk_free={disk_free_gb():.1f}GB")
+
+    if skip_5m:
+        log("PHASE 1+1.5 SKIP: 5m 已全量下完（断点续传保留）")
+        done_counter["5m"] = len(u)
+    else:
+        log("PHASE 1: 批量 download_history_data2 5m（成败看后续 get bars，不看 download ret）")
+        nb1, errb1 = batch_download("5m", u)
+        log(f"PHASE 1 done: 5m batches={nb1} err_batches={errb1}")
+
+        log("PHASE 1.5: 逐只 get_market_data_ex 读 5m → 写 raw/qfq parquet")
+        write_phase("5m", u, RAW_5M, QFQ_5M, MIN_BARS_RESUME_5M, failed, done_counter, "5m")
+        log(f"PHASE 1.5 done: 5m write done={done_counter['5m']} total_fail={len(failed)}")
+        time.sleep(SLEEP_BETWEEN_PHASES)
+
+    # ===================== Phase 2: 15m 逐只 download+write（替代卡死的批量 download_history_data2） =====================
+    # Main Agent 实证：全市场批量 download_history_data2('15m', 5201 只一次)卡死 30min 0 产出；
+    # 但逐只 download_history_data(code,'15m',start,end) 实测稳定（600051/300001/688981/000001 均 3890 bars）。
+    log(f"PHASE 2: 逐只 download_history_data('15m') + get + write raw/qfq  "
+        f"total={len(u)} disk_free={disk_free_gb():.1f}GB")
+    phase_15m_per_stock(u, failed, done_counter)
+    log(f"PHASE 2 done: 15m write done={done_counter['15m']} total_fail={len(failed)} "
+        f"disk_free={disk_free_gb():.1f}GB")
+
+    write_progress({
+        "phase": "validate_pending",
+        "total": len(u),
+        "done_5m": done_counter["5m"], "done_15m": done_counter["15m"],
+        "failed_count": len(failed), "failed": failed[:FAILED_LIST_CAP],
+        "failed_truncated": len(failed) > FAILED_LIST_CAP,
+        "last_stock": "(validate)", "pct": 100.0,
+    })
+
+    # ===================== Phase 3: 校验 =====================
+    log("PHASE 3: 校验 5m + 15m 双周期")
+    result = validate(u)
+    tmp = RESULT_FILE + ".tmp"
+    with open(tmp, "w", encoding="utf-8") as f:
+        json.dump(result, f, ensure_ascii=False, indent=2)
+    os.replace(tmp, RESULT_FILE)
+
+    write_progress({
+        "phase": f"done:{result['verdict']}",
+        "total": len(u),
+        "done_5m": done_counter["5m"], "done_15m": done_counter["15m"],
+        "failed_count": len(failed), "failed": failed[:FAILED_LIST_CAP],
+        "failed_truncated": len(failed) > FAILED_LIST_CAP,
+        "last_stock": "(done)", "pct": 100.0,
+    })
+
+    for period, info in result["periods"].items():
+        log(f"VERDICT[{period}]={info['verdict']} raw={info['raw_files']} qfq={info['qfq_files']} "
+            f"bars={info['total_bars']} sample_complete={info['sample_complete_count']}/{info['sample_size']} "
+            f"failed={info['failed_count']}")
+        if info["min_datetime"] and info["max_datetime"]:
+            log(f"  range[{period}] {info['min_datetime']} ~ {info['max_datetime']}")
+        if info["fail_reasons"]:
+            log(f"  fail_reasons[{period}]: {info['fail_reasons']}")
+    log(f"OVERALL VERDICT={result['verdict']} total_failed={len(failed)}")
+    sys.stdout.flush()
+    os._exit(0 if result["verdict"] == "PASS" else 1)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/scripts/data_platform/import_vnpy_minute_fast.py b/scripts/data_platform/import_vnpy_minute_fast.py
new file mode 100644
index 0000000..cffe5a2
--- /dev/null
+++ b/scripts/data_platform/import_vnpy_minute_fast.py
@@ -0,0 +1,240 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""高效导入 5m / 15m 分钟 Parquet 到 vnpy SQLite dbbardata。
+
+仿 import_vnpy_daily_fast.py 结构（parse_filename + pandas 向量化 + batch
+INSERT OR REPLACE + 末尾 dbbaroverview 刷新），改成读 minute_5/minute_15 的 raw
+parquet 灌到 dbbardata。
+
+【口径】
+- 只灌 raw（qfq 不灌——同日线机制，复权在读时按 dividend_type 转）
+- 文件名:<code>.<SH|SZ>_5m.parquet / _15m.parquet（实证，非 (sh|sz)<code>）
+- interval:'5m' 文件灌 '5m'、'15m' 文件灌 '15m'（字符串字段）
+- volume 已是股（parquet 里 ×100 过，别再 ×）
+- turnover 若无则 0.0；open_interest=0.0
+- datetime:parquet datetime64[ns] → astype(str) → 'YYYY-MM-DD HH:MM:SS'（同日线机制）
+
+【幂等】INSERT OR REPLACE(symbol,exchange,datetime,interval 为 unique）重跑安全。
+【进度】每 chunk flush print，断点续传可选（全量灌一次）。
+
+用法（VPS）：
+  set VNPY_DB_PATH=C:\\sanguo_vnpy_v2\\data\\quant_trading.db
+  set MINUTE_5_DIR=C:\\sanguo_vnpy_v2\\data\\minute_5\\raw
+  set MINUTE_15_DIR=C:\\sanguo_vnpy_v2\\data\\minute_15\\raw
+  C:\\Python310\\python.exe -X utf8 import_vnpy_minute_fast.py
+可选参数 --only 5m / --only 15m 只灌一个周期。
+退出码 0=完成；1=致命错误。
+"""
+import os
+import re
+import sys
+import time
+import sqlite3
+from pathlib import Path
+
+import pandas as pd
+
+DB_PATH = os.environ.get(
+    'VNPY_DB_PATH', r'C:\sanguo_vnpy_v2\data\quant_trading.db'
+)
+MINUTE_5_DIR = os.environ.get(
+    'MINUTE_5_DIR', r'C:\sanguo_vnpy_v2\data\minute_5\raw'
+)
+MINUTE_15_DIR = os.environ.get(
+    'MINUTE_15_DIR', r'C:\sanguo_vnpy_v2\data\minute_15\raw'
+)
+
+# chunk 内文件数（向量化合并 + 批量 INSERT 的平衡点；5m 每 chunk ~120w 行）
+# 经验：500 files/chunk 在 SSH-detached 环境下疑似资源约束 OOM-kill；降到 100 稳妥。
+CHUNK_FILES = int(os.environ.get('MINUTE_CHUNK_FILES', '100'))
+BATCH_INSERT = 20000
+
+# 文件名 <code>.<EXC>_5m.parquet（实证格式）
+_FNAME_RE = re.compile(r'^(\d{6})\.(SH|SZ)_\d+m\.parquet$', re.IGNORECASE)
+
+
+def parse_filename(filename: str):
+    """<code>.<SH|SZ>_Nm.parquet → (code, exchange_name) or (None, None)."""
+    m = _FNAME_RE.match(filename)
+    if not m:
+        return None, None
+    code, exc = m.groups()
+    exchange = 'SSE' if exc.upper() == 'SH' else 'SZSE'
+    return code, exchange
+
+
+def list_parquets(raw_dir: str, period_suffix: str):
+    """raw_dir 下匹配 <code>.<exc>_<period>.parquet 的文件。"""
+    p = Path(raw_dir)
+    if not p.exists():
+        return []
+    return sorted(p.glob(f'*_{period_suffix}.parquet'))
+
+
+def import_one_chunk(conn, files, interval: str, chunk_idx: int, total_chunks: int):
+    """向量化读 → 合并 → batch INSERT OR REPLACE。返回 (n_files_ok, n_rows).
+
+    内存优化：每 N 个文件 sub-chunk，避免单 chunk concat/tolist 占用过大。
+    """
+    c = conn.cursor()
+    n_ok_total = 0
+    n_rows_total = 0
+    SUB_BATCH = 25  # 每 25 文件 concat→insert→释放，控制峰值
+    for si in range(0, len(files), SUB_BATCH):
+        sub = files[si:si + SUB_BATCH]
+        dfs = []
+        n_ok = 0
+        for f in sub:
+            code, exchange = parse_filename(f.name)
+            if code is None:
+                continue
+            try:
+                df = pd.read_parquet(
+                    f, columns=['datetime', 'open', 'high', 'low', 'close', 'volume']
+                )
+            except Exception:
+                continue
+            if df.empty:
+                continue
+            df['symbol'] = code
+            df['exchange'] = exchange
+            dfs.append(df)
+            n_ok += 1
+        if not dfs:
+            continue
+
+        combined = pd.concat(dfs, ignore_index=True)
+        del dfs
+        combined['datetime'] = combined['datetime'].astype(str)
+        combined['interval'] = interval
+        combined['open_interest'] = 0.0
+        combined = combined.rename(columns={
+            'open': 'open_price', 'high': 'high_price',
+            'low': 'low_price', 'close': 'close_price',
+        })
+        if 'turnover' not in combined.columns:
+            combined['turnover'] = 0.0
+        for col in ('volume', 'turnover', 'open_price',
+                    'high_price', 'low_price', 'close_price'):
+            combined[col] = combined[col].fillna(0.0).astype(float)
+
+        values = combined[[
+            'symbol', 'exchange', 'datetime', 'interval', 'volume', 'turnover',
+            'open_interest', 'open_price', 'high_price', 'low_price', 'close_price',
+        ]].values.tolist()
+        del combined
+
+        for i in range(0, len(values), BATCH_INSERT):
+            c.executemany(
+                '''INSERT OR REPLACE INTO dbbardata
+                   (symbol,exchange,datetime,interval,volume,turnover,open_interest,
+                    open_price,high_price,low_price,close_price)
+                   VALUES (?,?,?,?,?,?,?,?,?,?,?)''',
+                values[i:i + BATCH_INSERT],
+            )
+        conn.commit()
+        n_ok_total += n_ok
+        n_rows_total += len(values)
+        del values
+    return n_ok_total, n_rows_total
+
+
+def import_interval(conn, interval: str, raw_dir: str, period_suffix: str):
+    files = list_parquets(raw_dir, period_suffix)
+    n_total = len(files)
+    if n_total == 0:
+        print(f'[{interval}] no parquet under {raw_dir}', flush=True)
+        return 0, 0
+    n_chunks = (n_total + CHUNK_FILES - 1) // CHUNK_FILES
+    print(f'[{interval}] {n_total} files, {n_chunks} chunks, dir={raw_dir}',
+          flush=True)
+
+    total_rows = 0
+    total_files = 0
+    t0 = time.time()
+    for ci in range(n_chunks):
+        chunk_files = files[ci * CHUNK_FILES:(ci + 1) * CHUNK_FILES]
+        nf, nrows = import_one_chunk(conn, chunk_files, interval, ci, n_chunks)
+        total_files += nf
+        total_rows += nrows
+        elapsed = time.time() - t0
+        print(f'[{interval}] chunk {ci+1}/{n_chunks} '
+              f'files_done={total_files}/{n_total} '
+              f'rows={total_rows} elapsed={elapsed:.1f}s '
+              f'({total_rows/max(elapsed,1):.0f} rows/s)', flush=True)
+    return total_files, total_rows
+
+
+def update_overview(conn):
+    """刷新 dbbaroverview（按 symbol,exchange,interval 分组聚合，含 5m/15m）。"""
+    c = conn.cursor()
+    c.execute(
+        '''INSERT OR REPLACE INTO dbbaroverview
+           (symbol,exchange,interval,count,start,end)
+           SELECT symbol,exchange,interval,COUNT(*),MIN(datetime),MAX(datetime)
+           FROM dbbardata GROUP BY symbol,exchange,interval'''
+    )
+    conn.commit()
+
+
+def report_db_counts(conn):
+    c = conn.cursor()
+    rows = c.execute(
+        'SELECT interval, COUNT(*) FROM dbbardata GROUP BY interval'
+    ).fetchall()
+    for iv, n in rows:
+        print(f'  interval={iv} count={n}', flush=True)
+    for iv in ('5m', '15m'):
+        row = c.execute(
+            'SELECT MAX(datetime), MIN(datetime), COUNT(*) '
+            'FROM dbbardata WHERE interval=?', (iv,)
+        ).fetchone()
+        if row and row[0]:
+            print(f'  [{iv}] range={row[1]} ~ {row[0]} rows={row[2]}', flush=True)
+
+
+def main():
+    only = None
+    for i, arg in enumerate(sys.argv):
+        if arg == '--only' and i + 1 < len(sys.argv):
+            only = sys.argv[i + 1].lower()
+
+    print(f'Import minute parquet → DB: {DB_PATH}', flush=True)
+    print(f'  MINUTE_5_DIR={MINUTE_5_DIR}', flush=True)
+    print(f'  MINUTE_15_DIR={MINUTE_15_DIR}', flush=True)
+    print(f'  only={only}', flush=True)
+
+    if not os.path.exists(DB_PATH):
+        print(f'FATAL: DB not found: {DB_PATH}', flush=True)
+        sys.exit(1)
+
+    conn = sqlite3.connect(DB_PATH)
+    t_start = time.time()
+    grand_rows = 0
+
+    if only in (None, '5m'):
+        nf, nr = import_interval(conn, '5m', MINUTE_5_DIR, '5m')
+        grand_rows += nr
+        print(f'[5m] DONE files={nf} rows={nr}', flush=True)
+    if only in (None, '15m'):
+        nf, nr = import_interval(conn, '15m', MINUTE_15_DIR, '15m')
+        grand_rows += nr
+        print(f'[15m] DONE files={nf} rows={nr}', flush=True)
+
+    print(f'Updating dbbaroverview ...', flush=True)
+    t_ov = time.time()
+    update_overview(conn)
+    print(f'  overview updated ({time.time()-t_ov:.1f}s)', flush=True)
+
+    elapsed = time.time() - t_start
+    print(f'\nDone in {elapsed:.1f}s ({elapsed/60:.1f}min) total_rows_added={grand_rows}',
+          flush=True)
+    print('Final DB counts:', flush=True)
+    report_db_counts(conn)
+
+    conn.close()
+    sys.exit(0)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/scripts/data_platform/relaunch_15m_wrapper.ps1 b/scripts/data_platform/relaunch_15m_wrapper.ps1
new file mode 100644
index 0000000..ce10202
--- /dev/null
+++ b/scripts/data_platform/relaunch_15m_wrapper.ps1
@@ -0,0 +1,40 @@
+$ErrorActionPreference = 'Continue'
+$ProgressPreference = 'SilentlyContinue'
+$maxRetries = 15
+$script = 'C:\sanguo_vnpy_v2\scripts\data_platform\download_15m_xtdata.py'
+$resultFile = 'C:\sanguo_vnpy_v2\data\minute_15\_result.json'
+$logFile = 'C:\sanguo_vnpy_v2\data\minute_15_download.log'
+$errFile = 'C:\sanguo_vnpy_v2\data\minute_15_download.err.log'
+$wrapperLog = 'C:\sanguo_vnpy_v2\data\minute_15_wrapper.log'
+
+function Log-W($m) {
+    $line = "$(Get-Date -Format 'yyyy-MM-dd HH:mm:ss') $m"
+    Add-Content -Path $wrapperLog -Value $line -Encoding UTF8
+}
+
+Log-W "WRAPPER START maxRetries=$maxRetries"
+for ($i = 1; $i -le $maxRetries; $i++) {
+    Log-W "ATTEMPT $i/$maxRetries starting python"
+    if (Test-Path $errFile) { Clear-Content $errFile -EA SilentlyContinue }
+    try {
+        $p = Start-Process -FilePath 'C:\Python310\python.exe' `
+            -ArgumentList '-X utf8', $script `
+            -WindowStyle Hidden `
+            -RedirectStandardOutput $logFile `
+            -RedirectStandardError $errFile `
+            -Wait -PassThru
+        $ec = if ($null -ne $p.ExitCode) { $p.ExitCode } else { -999 }
+    } catch {
+        $ec = -998
+        Log-W "Start-Process exception: $_"
+    }
+    Log-W "ATTEMPT $i exited code=$ec"
+
+    if (Test-Path $resultFile) {
+        Log-W "_result.json EXISTS - DONE"
+        break
+    }
+    Log-W "no result yet, sleeping 8s before retry..."
+    Start-Sleep -Seconds 8
+}
+Log-W "WRAPPER EXIT"
diff --git a/scripts/data_platform/validate_import.py b/scripts/data_platform/validate_import.py
new file mode 100644
index 0000000..ac38630
--- /dev/null
+++ b/scripts/data_platform/validate_import.py
@@ -0,0 +1,262 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""灌后校验：parquet 日线 ↔ quant_trading.db dbbardata 三项一致性检查。
+
+独立可跑。读两个环境变量：
+  VNPY_DB_PATH  默认 C:\\sanguo_vnpy_v2\\data\\quant_trading.db
+  DAILY_DIR     默认 C:\\sanguo_vnpy_v2\\data\\raw
+
+三项校验：
+  A 最新日期相等: max(date) over raw parquet == max(datetime) where interval='d' from DB
+  B 抽查 3 只股 OHLCV 逐值相等: 600519(SSE)/000001(SZSE)/000858(SZSE),
+    各 parquet 最新 5 行 vs DB datetime 倒序 limit 5, date 对齐逐值比对 (abs<1e-4)
+  C 当天数据合理性: DB 中 date==parquet_max 且 interval='d' 的所有行,
+    无 close_price<=0、无 high_price<low_price、close_price 非 null
+
+退出码: PASS=0 / FAIL=1。纯 stdlib + pandas (VPS 已装)。
+
+Windows GBK 终端需 `python -X utf8 validate_import.py` 调用。
+"""
+import os
+import sys
+import sqlite3
+from pathlib import Path
+
+import pandas as pd
+
+DB_PATH = os.environ.get('VNPY_DB_PATH', r'C:\sanguo_vnpy_v2\data\quant_trading.db')
+DAILY_DIR = os.environ.get('DAILY_DIR', r'C:\sanguo_vnpy_v2\data\raw')
+
+# (symbol_code, exchange, filename_prefix) 三只蓝筹股做抽查
+SAMPLES = [
+    ('600519', 'SSE', 'sh'),
+    ('000001', 'SZSE', 'sz'),
+    ('000858', 'SZSE', 'sz'),
+]
+
+
+def norm_date_str(s):
+    """统一成 'YYYY-MM-DD' 字符串。接受 Timestamp / datetime / str。"""
+    ts = pd.Timestamp(s)
+    return ts.strftime('%Y-%m-%d')
+
+
+def find_parquet_max_date():
+    """扫最近年份目录下所有 raw parquet，取最大 date。
+    只扫最新有数据的年份目录（~5000 文件 × 仅读 date 列 ≈ 10s）。
+    返回 (max_date_str or None, n_files_scanned)。"""
+    max_date = None
+    n_files = 0
+    year_dirs = sorted(
+        [d for d in Path(DAILY_DIR).glob('*') if d.is_dir() and d.name.isdigit()],
+        key=lambda d: d.name,
+        reverse=True,
+    )
+    for year_dir in year_dirs[:2]:  # 最多看最近 2 个年份目录
+        local_max = None
+        for f in year_dir.glob('*.parquet'):
+            n_files += 1
+            try:
+                df = pd.read_parquet(f, columns=['date'])
+                if df.empty:
+                    continue
+                cur = df['date'].max()
+                if local_max is None or cur > local_max:
+                    local_max = cur
+            except Exception:
+                continue
+        if local_max is not None:
+            max_date = local_max
+            break  # 当前年份有数据就不再看上一年
+    return (norm_date_str(max_date) if max_date is not None else None, n_files)
+
+
+def check_a(parquet_max, db_max):
+    """A: 最新日期相等"""
+    p = parquet_max
+    d = db_max[:10] if db_max else None
+    ok = (p is not None) and (d is not None) and (p == d)
+    return ok, {'parquet_max': p, 'db_max': d}
+
+
+def check_b(conn):
+    """B: 3 只股 OHLCV 逐值比对"""
+    detail = {}
+    all_ok = True
+    for code, exchange, prefix in SAMPLES:
+        # 从最新年份目录往前找 parquet
+        year_dirs = sorted(
+            [d for d in Path(DAILY_DIR).glob('*') if d.is_dir() and d.name.isdigit()],
+            key=lambda d: d.name,
+            reverse=True,
+        )
+        parquet_path = None
+        for yd in year_dirs:
+            p = yd / f'{prefix}{code}_daily.parquet'
+            if p.exists():
+                parquet_path = p
+                break
+        if parquet_path is None:
+            detail[code] = {'status': 'MISSING_PARQUET'}
+            all_ok = False
+            continue
+        try:
+            pdf = pd.read_parquet(parquet_path).sort_values('date').tail(5).reset_index(drop=True)
+        except Exception as e:
+            detail[code] = {'status': f'PARQUET_READ_ERR: {e}'}
+            all_ok = False
+            continue
+        try:
+            rows = conn.execute(
+                "SELECT datetime, open_price, high_price, low_price, close_price, volume "
+                "FROM dbbardata WHERE symbol=? AND exchange=? AND interval='d' "
+                "ORDER BY datetime DESC LIMIT 5",
+                (code, exchange),
+            ).fetchall()
+        except Exception as e:
+            detail[code] = {'status': f'DB_QUERY_ERR: {e}'}
+            all_ok = False
+            continue
+        if not rows:
+            detail[code] = {'status': 'DB_EMPTY'}
+            all_ok = False
+            continue
+        db_pdf = pd.DataFrame(rows, columns=['datetime', 'open', 'high', 'low', 'close', 'volume'])
+        db_pdf = db_pdf.sort_values('datetime').reset_index(drop=True)
+        db_pdf['date'] = db_pdf['datetime'].str[:10]
+        pdf = pdf.copy()
+        pdf['date'] = pdf['date'].astype(str).str[:10]
+
+        # 取共同尾部 n 行
+        n = min(len(pdf), len(db_pdf))
+        if n == 0:
+            detail[code] = {'status': 'EMPTY_AFTER_ALIGN'}
+            all_ok = False
+            continue
+        p_tail = pdf.tail(n).reset_index(drop=True)
+        d_tail = db_pdf.tail(n).reset_index(drop=True)
+
+        dates_match = (p_tail['date'].values == d_tail['date'].values).all()
+        cols = ['open', 'high', 'low', 'close', 'volume']
+        vals_match = True
+        bad_col = None
+        for c in cols:
+            try:
+                pv = p_tail[c].astype(float).values
+                dv = d_tail[c].astype(float).values
+                max_diff = float((abs(pv - dv)).max())
+                if max_diff > 1e-4:
+                    vals_match = False
+                    bad_col = f'{c}(max_diff={max_diff})'
+                    break
+            except Exception as e:
+                vals_match = False
+                bad_col = f'{c}: {e}'
+                break
+
+        ok = bool(dates_match and vals_match)
+        if not ok:
+            all_ok = False
+        detail[code] = {
+            'status': 'PASS' if ok else 'FAIL',
+            'n_rows': n,
+            'dates_match': bool(dates_match),
+            'vals_match': bool(vals_match),
+            'bad_col': bad_col,
+            'latest_date': p_tail['date'].iloc[-1] if len(p_tail) else None,
+            'latest_close': float(p_tail['close'].iloc[-1]) if len(p_tail) else None,
+        }
+    return all_ok, detail
+
+
+def check_c(conn, parquet_max_str):
+    """C: 当天数据合理性（DB 中 date==parquet_max 的所有 interval='d' 行）"""
+    if not parquet_max_str:
+        return False, {'reason': 'no parquet_max'}
+    pattern = parquet_max_str + '%'
+    try:
+        total = conn.execute(
+            "SELECT COUNT(*) FROM dbbardata WHERE interval='d' AND datetime LIKE ?",
+            (pattern,),
+        ).fetchone()[0]
+    except Exception as e:
+        return False, {'reason': f'DB_QUERY_ERR: {e}'}
+    if total == 0:
+        return False, {'reason': f'no rows for {parquet_max_str}'}
+    try:
+        bad_close = conn.execute(
+            "SELECT COUNT(*) FROM dbbardata WHERE interval='d' AND datetime LIKE ? "
+            "AND (close_price IS NULL OR close_price <= 0)",
+            (pattern,),
+        ).fetchone()[0]
+        bad_hl = conn.execute(
+            "SELECT COUNT(*) FROM dbbardata WHERE interval='d' AND datetime LIKE ? "
+            "AND high_price < low_price",
+            (pattern,),
+        ).fetchone()[0]
+    except Exception as e:
+        return False, {'reason': f'DB_QUERY_ERR: {e}'}
+    ok = (bad_close == 0) and (bad_hl == 0)
+    return ok, {
+        'date': parquet_max_str,
+        'total_rows': total,
+        'bad_close': bad_close,
+        'bad_high_low': bad_hl,
+    }
+
+
+def main():
+    print(f'[VALIDATE] DB={DB_PATH}')
+    print(f'[VALIDATE] DAILY_DIR={DAILY_DIR}')
+
+    if not os.path.exists(DB_PATH):
+        print(f'[VALIDATE][FAIL] DB not found: {DB_PATH}')
+        sys.exit(1)
+    if not os.path.exists(DAILY_DIR):
+        print(f'[VALIDATE][FAIL] DAILY_DIR not found: {DAILY_DIR}')
+        sys.exit(1)
+
+    parquet_max, n_files = find_parquet_max_date()
+    if parquet_max is None:
+        print(f'[VALIDATE][FAIL] no parquet under {DAILY_DIR} (scanned {n_files} files)')
+        sys.exit(1)
+    print(f'[VALIDATE] scanned {n_files} parquet files, parquet_max={parquet_max}')
+
+    conn = sqlite3.connect(DB_PATH)
+
+    try:
+        row = conn.execute("SELECT MAX(datetime) FROM dbbardata WHERE interval='d'").fetchone()
+        db_max = row[0] if row else None
+    except Exception as e:
+        print(f'[VALIDATE][FAIL] DB query max(datetime) err: {e}')
+        conn.close()
+        sys.exit(1)
+    print(f'[VALIDATE] db_max={db_max}')
+
+    # A
+    a_ok, a_detail = check_a(parquet_max, db_max)
+    print(f'[VALIDATE][A] {"PASS" if a_ok else "FAIL"} parquet_max={a_detail["parquet_max"]} db_max={a_detail["db_max"]}')
+
+    # B
+    b_ok, b_detail = check_b(conn)
+    print(f'[VALIDATE][B] {"PASS" if b_ok else "FAIL"}')
+    for code, info in b_detail.items():
+        if info.get('status') == 'PASS':
+            print(f'  {code}: PASS n={info["n_rows"]} latest={info["latest_date"]} close={info["latest_close"]}')
+        else:
+            print(f'  {code}: {info}')
+
+    # C
+    c_ok, c_detail = check_c(conn, parquet_max)
+    print(f'[VALIDATE][C] {"PASS" if c_ok else "FAIL"} {c_detail}')
+
+    conn.close()
+
+    overall = a_ok and b_ok and c_ok
+    print(f'[VALIDATE] {"PASS" if overall else "FAIL"} '
+          f'(A={"PASS" if a_ok else "FAIL"} B={"PASS" if b_ok else "FAIL"} C={"PASS" if c_ok else "FAIL"})')
+    sys.exit(0 if overall else 1)
+
+
+if __name__ == '__main__':
+    main()