diff --git a/deploy/profile-scripts/build_panel_hk.py b/deploy/profile-scripts/build_panel_hk.py
index 85308ca2..b3645d77 100644
--- a/deploy/profile-scripts/build_panel_hk.py
+++ b/deploy/profile-scripts/build_panel_hk.py
@@ -36,6 +36,7 @@ def calc_rsi(closes, n=14):
 
 def main():
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     hsi = pd.read_sql("SELECT date, close FROM stock_daily WHERE code='hkHSI' ORDER BY date", conn)
     codes = [r[0] for r in conn.execute(
         "SELECT code FROM hk_connect_stocks WHERE is_active=1 ORDER BY code").fetchall()]
@@ -61,6 +62,7 @@ def main():
         if not sec:
             continue
         conn = sqlite3.connect(DB)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         df = pd.read_sql("SELECT date, close FROM stock_daily WHERE code=? ORDER BY date",
                          conn, params=(code,))
         conn.close()
@@ -83,6 +85,7 @@ def main():
     # 估值分位（每日截面）
     print("加载历史估值...", flush=True)
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     hist = pd.read_sql(
         "SELECT code, date, pe_ttm, pb FROM stock_fundamentals_history WHERE length(code)=5", conn)
     conn.close()
@@ -97,6 +100,7 @@ def main():
     # 资金流（当日主力净流入，万元）
     print("加载资金流...", flush=True)
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     flow = pd.read_sql(
         "SELECT code, date, flow_in, flow_out FROM hk_flow_daily", conn)
     conn.close()
@@ -110,6 +114,7 @@ def main():
     # 市值（当前市值×价格比反推历史，总股本短期不变）
     print("加载市值...", flush=True)
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     fund_mc = pd.read_sql(
         "SELECT code, mcap_total FROM stock_fundamentals WHERE length(code)=5", conn)
     conn.close()
@@ -121,6 +126,7 @@ def main():
     for idx, code in enumerate(codes):
         sec = sector.get(code)
         conn = sqlite3.connect(DB)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         df = pd.read_sql(
             "SELECT date, open, close, high, low, volume FROM stock_daily WHERE code=? ORDER BY date",
             conn, params=(code,))
diff --git a/deploy/profile-scripts/capital_flow_collector.py b/deploy/profile-scripts/capital_flow_collector.py
index 0564412c..c7334edf 100644
--- a/deploy/profile-scripts/capital_flow_collector.py
+++ b/deploy/profile-scripts/capital_flow_collector.py
@@ -155,6 +155,7 @@ def main():
     try:
         import sqlite3
         _db = sqlite3.connect("/home/hmo/MoFin/data/mofin.db")
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         for row in _db.execute("SELECT DISTINCT code FROM holdings WHERE is_active=1").fetchall():
             if row[0]: codes.add(row[0])
         for row in _db.execute("SELECT DISTINCT code FROM holding_strategies WHERE status='active' AND decision_type='自选策略'").fetchall():
diff --git a/deploy/profile-scripts/data_governance.py b/deploy/profile-scripts/data_governance.py
index bf10f449..18e3e3e9 100644
--- a/deploy/profile-scripts/data_governance.py
+++ b/deploy/profile-scripts/data_governance.py
@@ -58,6 +58,7 @@ def check_missing_strategies(conn, decisions_list):
 
 def main():
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
 
     # 1. 清理 holding_strategies
     archived = clean_holding_strategies(conn)
diff --git a/deploy/profile-scripts/divergence_detector.py b/deploy/profile-scripts/divergence_detector.py
index 77fd2006..246631fa 100644
--- a/deploy/profile-scripts/divergence_detector.py
+++ b/deploy/profile-scripts/divergence_detector.py
@@ -95,6 +95,7 @@ def load_history():
     try:
         import sqlite3
         conn = sqlite3.connect(str(DB_PATH))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         rows = conn.execute(
             "SELECT indices, created_at FROM macro_context_log "
             "WHERE has_valid_data=1 ORDER BY created_at DESC LIMIT 5"
@@ -277,6 +278,7 @@ def write_to_signal_news(signals):
         return
     import sqlite3
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     
     high_signals = [s for s in signals if s["level"] == "high"]
     if high_signals:
diff --git a/deploy/profile-scripts/fundamentals_refresh.py b/deploy/profile-scripts/fundamentals_refresh.py
index 824b70e0..fd12dba8 100644
--- a/deploy/profile-scripts/fundamentals_refresh.py
+++ b/deploy/profile-scripts/fundamentals_refresh.py
@@ -22,6 +22,7 @@ def prefix(code):
 
 def main():
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     codes = [r[0] for r in conn.execute(
         "SELECT DISTINCT code FROM holding_strategies WHERE status='active'")]
     print(f"刷新 {len(codes)} 只基本面...")
diff --git a/deploy/profile-scripts/generate_report.py b/deploy/profile-scripts/generate_report.py
index a4caefe2..4ad028a2 100644
--- a/deploy/profile-scripts/generate_report.py
+++ b/deploy/profile-scripts/generate_report.py
@@ -98,6 +98,7 @@ def main():
     try:
         import sqlite3
         _conn = sqlite3.connect("/home/hmo/web-dashboard/data/mofin.db")
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         _actionable = _conn.execute(
             "SELECT hs.code, lp.price, hs.entry_low, hs.entry_high FROM holding_strategies hs "
             "LEFT JOIN live_prices lp ON hs.code = lp.code "
diff --git a/deploy/profile-scripts/hk_backtest.py b/deploy/profile-scripts/hk_backtest.py
index 59eae541..d19ce115 100644
--- a/deploy/profile-scripts/hk_backtest.py
+++ b/deploy/profile-scripts/hk_backtest.py
@@ -36,6 +36,7 @@ def load_regime_map():
     global _REGIME_CACHE
     if _REGIME_CACHE is None:
         conn = sqlite3.connect(DB)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         _REGIME_CACHE = dict(conn.execute(
             "SELECT date, regime FROM market_regime WHERE market='hk'").fetchall())
         conn.close()
@@ -156,6 +157,7 @@ def portfolio_nav(trades, capital=1000000, slots=8):
         return {}, {}
     # 用真实日历（stock_daily 港股日K日期）
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     cal = [r[0] for r in conn.execute(
         "SELECT DISTINCT date FROM stock_daily WHERE date>=? AND date<=? AND length(code)=5 ORDER BY date",
         (dates[0], dates[-1])).fetchall()]
diff --git a/deploy/profile-scripts/hk_rate.py b/deploy/profile-scripts/hk_rate.py
index f0972d29..de617128 100644
--- a/deploy/profile-scripts/hk_rate.py
+++ b/deploy/profile-scripts/hk_rate.py
@@ -26,6 +26,7 @@ def _get_rate_from_db():
     try:
         import sqlite3
         conn = sqlite3.connect(DB_PATH)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         cursor = conn.execute(
             "SELECT rate FROM fx_rate WHERE currency_pair='HKD_CNY' AND is_active=1 ORDER BY created_at DESC LIMIT 1"
         )
@@ -42,6 +43,7 @@ def _set_rate_in_db(rate, source='api_refresh'):
     try:
         import sqlite3
         conn = sqlite3.connect(DB_PATH)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         # 先将旧的设为 inactive
         conn.execute("UPDATE fx_rate SET is_active=0 WHERE currency_pair='HKD_CNY'")
         # 插入新汇率
diff --git a/deploy/profile-scripts/import_full_stocks.py b/deploy/profile-scripts/import_full_stocks.py
index ef6c3e72..148dc066 100644
--- a/deploy/profile-scripts/import_full_stocks.py
+++ b/deploy/profile-scripts/import_full_stocks.py
@@ -40,6 +40,7 @@ def fetch_tencent_batch(codes):
 def main():
     import sqlite3
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     
     # 获取已有代码
     existing = set(r[0] for r in conn.execute("SELECT code FROM stocks").fetchall())
diff --git a/deploy/profile-scripts/import_holding_xls.py b/deploy/profile-scripts/import_holding_xls.py
index def74b15..1ed52959 100644
--- a/deploy/profile-scripts/import_holding_xls.py
+++ b/deploy/profile-scripts/import_holding_xls.py
@@ -114,6 +114,7 @@ def main():
     # Step 1: Update SQLite (regenerate_all reads from here)
     print("\n→ 更新 SQLite holdings 表...")
     conn = sqlite3.connect(DB_PATH)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     c = conn.cursor()
     c.execute('DELETE FROM holdings')
     c.execute('DELETE FROM portfolio_summary')
diff --git a/deploy/profile-scripts/kanban_xmpp_bridge.py b/deploy/profile-scripts/kanban_xmpp_bridge.py
index a4ac5a65..ed32b851 100644
--- a/deploy/profile-scripts/kanban_xmpp_bridge.py
+++ b/deploy/profile-scripts/kanban_xmpp_bridge.py
@@ -51,6 +51,7 @@ def main():
         return
     notified = _load_state()
     db = sqlite3.connect(KANBAN_DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     rows = db.execute(
         "SELECT id, title, assignee, created_by FROM tasks "
         "WHERE status='ready' AND assignee IN (%s) ORDER BY created_at"
diff --git a/deploy/profile-scripts/leader_scanner.py b/deploy/profile-scripts/leader_scanner.py
index 9c96c0ef..fb04bce8 100644
--- a/deploy/profile-scripts/leader_scanner.py
+++ b/deploy/profile-scripts/leader_scanner.py
@@ -41,6 +41,7 @@ def scan_leaders():
         return []
 
     c = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     # 最新交易日
     row = c.execute("SELECT MAX(date) FROM stock_indicators").fetchone()
     if not row or not row[0]:
diff --git a/deploy/profile-scripts/live_data_collector.py b/deploy/profile-scripts/live_data_collector.py
index 7ab46b38..7f6921af 100644
--- a/deploy/profile-scripts/live_data_collector.py
+++ b/deploy/profile-scripts/live_data_collector.py
@@ -25,6 +25,7 @@ os.makedirs(LIVE_DIR, exist_ok=True)
 def collect_daily_snapshot(date_str=None):
     """累积某日的实盘数据快照"""
     conn = sqlite3.connect(f"file:{DB}?mode=ro", uri=True)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     conn.execute("PRAGMA query_only=ON")
 
     if date_str is None:
diff --git a/deploy/profile-scripts/macro_context_collector.py b/deploy/profile-scripts/macro_context_collector.py
index 35899ee0..f23d03c7 100644
--- a/deploy/profile-scripts/macro_context_collector.py
+++ b/deploy/profile-scripts/macro_context_collector.py
@@ -217,6 +217,7 @@ def write_risk_signal(conn, level, matched, summary):
 
 def main():
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     ensure_tables(conn)
 
     # 去重基础
diff --git a/deploy/profile-scripts/mo_alphasift_bridge.py b/deploy/profile-scripts/mo_alphasift_bridge.py
index 7cbc3343..57b663f5 100644
--- a/deploy/profile-scripts/mo_alphasift_bridge.py
+++ b/deploy/profile-scripts/mo_alphasift_bridge.py
@@ -59,6 +59,7 @@ def get_existing_codes():
     try:
         import sqlite3
         db = sqlite3.connect(str(MOFIN_DATA / "mofin.db"))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         for row in db.execute("SELECT code FROM watchlist_stocks WHERE is_active=1"):
             codes.add(str(row[0]).strip())
         for row in db.execute("SELECT code FROM holdings"):
diff --git a/deploy/profile-scripts/mo_data.py b/deploy/profile-scripts/mo_data.py
index fee5e990..48cb39f2 100644
--- a/deploy/profile-scripts/mo_data.py
+++ b/deploy/profile-scripts/mo_data.py
@@ -23,6 +23,7 @@ SCRIPT_DIR = Path('/home/hmo/MoFin/scripts')
 
 def _get_db():
     db = sqlite3.connect(DB_PATH)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     db.row_factory = sqlite3.Row
     return db
 
@@ -287,6 +288,7 @@ def write_cash_log(cash_before, cash_after, frozen_before, frozen_after,
     """记录现金变更到 cash_log 表。"""
     change_amount = round(cash_after - cash_before, 2) if cash_after is not None and cash_before is not None else 0
     db = sqlite3.connect(DB_PATH)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     try:
         cur = db.execute(
             """INSERT INTO cash_log
diff --git a/deploy/profile-scripts/mofin_db.py b/deploy/profile-scripts/mofin_db.py
index b6f851c4..dd1c6110 100644
--- a/deploy/profile-scripts/mofin_db.py
+++ b/deploy/profile-scripts/mofin_db.py
@@ -1119,6 +1119,7 @@ def get_price_from_db(code: str) -> tuple[float | None, float | None]:
     """
     try:
         db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db.row_factory = sqlite3.Row
         row = db.execute(
             "SELECT price, change_pct FROM holdings WHERE code=? AND is_active=1", (str(code),)
@@ -1142,6 +1143,7 @@ def get_prices_batch_from_db(codes: list[str]) -> dict:
         return results
     try:
         db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db.row_factory = sqlite3.Row
         for code in codes:
             row = db.execute(
diff --git a/deploy/profile-scripts/mofin_news.py b/deploy/profile-scripts/mofin_news.py
index 4da6ed79..38df2443 100644
--- a/deploy/profile-scripts/mofin_news.py
+++ b/deploy/profile-scripts/mofin_news.py
@@ -29,6 +29,7 @@ def clean_proxy():
 def get_conn():
     import sqlite3
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     conn.row_factory = sqlite3.Row
     return conn
 
diff --git a/deploy/profile-scripts/morning_health_check.py b/deploy/profile-scripts/morning_health_check.py
index f53af5b5..bdab5c2a 100644
--- a/deploy/profile-scripts/morning_health_check.py
+++ b/deploy/profile-scripts/morning_health_check.py
@@ -141,6 +141,7 @@ def write_todos_for_issues():
         
         try:
             conn = sqlite3.connect(str(DB_PATH))
+            conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
             todo_priority = {"critical": "high", "error": "medium", "warn": "low"}
             new_count = 0
             
@@ -304,6 +305,7 @@ def check_db_table_count(table, field, value, op="today", threshold=0):
     """检查数据库中的记录数"""
     try:
         conn = sqlite3.connect(str(DB_PATH))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         cur = conn.cursor()
         if op == "today":
             today = ctx["started_at"].strftime("%Y-%m-%d")
@@ -478,6 +480,7 @@ def check_meta_health_check_yesterday():
     """元检：昨天体检是否正常完成"""
     try:
         conn = sqlite3.connect(str(DB_PATH))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         yesterday = (ctx["started_at"] - timedelta(days=1)).strftime("%Y-%m-%d")
         row = conn.execute(
             "SELECT ok_count, error_count, critical_count FROM health_check_log "
@@ -804,6 +807,7 @@ def main():
     # 保存历史到DB
     try:
         conn_hist = sqlite3.connect(str(DB_PATH))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         details = json.dumps([e for e in ctx["report"] if e["level"] in ("critical", "error")])
         conn_hist.execute(
             "INSERT INTO health_check_log (ok_count, warn_count, error_count, critical_count, duration_s, details) "
@@ -834,6 +838,7 @@ def main():
     # 检查是否有执行器升级来的TODO（通知失败挂起的）
     try:
         conn2 = sqlite3.connect(str(DB_PATH))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         needs_llm = conn2.execute(
             "SELECT id, title, priority, created_at, note FROM todos "
             "WHERE status='needs_llm' "
diff --git a/deploy/profile-scripts/news_collector.py b/deploy/profile-scripts/news_collector.py
index ab8027bf..c8462095 100644
--- a/deploy/profile-scripts/news_collector.py
+++ b/deploy/profile-scripts/news_collector.py
@@ -69,6 +69,7 @@ def init_table(conn):
 
 if __name__ == '__main__':
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     init_table(conn)
 
     # 取策略用到的 58 只股票
diff --git a/deploy/profile-scripts/per_stock_reassess.py b/deploy/profile-scripts/per_stock_reassess.py
index ef2f3c6f..d0ebd7e6 100644
--- a/deploy/profile-scripts/per_stock_reassess.py
+++ b/deploy/profile-scripts/per_stock_reassess.py
@@ -16,6 +16,7 @@ def _in_cooldown(code):
     try:
         import sqlite3
         conn = sqlite3.connect("/home/hmo/MoFin/data/mofin.db")
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         r = conn.execute("SELECT reassessed_at FROM holding_strategies WHERE code=? AND status='active' ORDER BY id DESC LIMIT 1", (code,)).fetchone()
         conn.close()
         if not r or not r[0]:
@@ -272,6 +273,7 @@ def main():
             # 不在 decisions 中的自选股 → 从 holding_strategies 构建entry
             import sqlite3
             _db = sqlite3.connect('/home/hmo/MoFin/data/mofin.db')
+            conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
             _db.row_factory = sqlite3.Row
             _wl = _db.execute("SELECT * FROM holding_strategies WHERE code=? AND status='active' AND decision_type='自选策略'", (code,)).fetchone()
             _db.close()
@@ -306,6 +308,7 @@ def main():
                 price = 0
                 import sqlite3
                 db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+                conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
                 db.row_factory = sqlite3.Row
                 row = db.execute("SELECT price FROM holdings WHERE code=? AND is_active=1", (code_raw,)).fetchone()
                 if not row:
@@ -559,6 +562,7 @@ def main():
         from datetime import datetime as _dt
         import sqlite3
         _db2 = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         for _code in codes:
             _entry = decisions_map.get(_code)
             if _entry and _entry.get("is_watchlist"):
@@ -622,6 +626,7 @@ def scan_watchlist_stocks():
 
     DB = '/home/hmo/web-dashboard/data/mofin.db'
     db = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     db.row_factory = sqlite3.Row
 
     rows = db.execute(
diff --git a/deploy/profile-scripts/pool_news_collector.py b/deploy/profile-scripts/pool_news_collector.py
index e0977208..8fea4943 100644
--- a/deploy/profile-scripts/pool_news_collector.py
+++ b/deploy/profile-scripts/pool_news_collector.py
@@ -58,6 +58,7 @@ def main():
         return
 
     conn = sqlite3.connect(DB_PATH)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     init_table(conn)
     cur = conn.cursor()
 
diff --git a/deploy/profile-scripts/pre-flight-check.py b/deploy/profile-scripts/pre-flight-check.py
index e0750e0f..ecbd44c6 100644
--- a/deploy/profile-scripts/pre-flight-check.py
+++ b/deploy/profile-scripts/pre-flight-check.py
@@ -67,6 +67,7 @@ def check_data_freshness():
     try:
         import sqlite3
         c = sqlite3.connect(str(WEB_DATA / "mofin.db"))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         row = c.execute("SELECT MAX(updated_at) FROM holding_strategies WHERE status IN ('active','updated')").fetchone()
         c.close()
         if row and row[0]:
diff --git a/deploy/profile-scripts/preflight_verify.py b/deploy/profile-scripts/preflight_verify.py
index 9b749a44..e77759e6 100644
--- a/deploy/profile-scripts/preflight_verify.py
+++ b/deploy/profile-scripts/preflight_verify.py
@@ -71,6 +71,7 @@ def check_db():
         return
     try:
         conn = sqlite3.connect(str(DB_PATH))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         pragma = conn.execute("PRAGMA integrity_check").fetchone()[0]
         check("DB 完整性", pragma == "ok", pragma)
         
@@ -245,6 +246,7 @@ if __name__ == "__main__":
         # 尝试写mofin.db todos
         try:
             conn = sqlite3.connect(str(DB_PATH))
+            conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
             conn.execute("""
                 INSERT OR REPLACE INTO todos (id, content, status, source, created_at, fix_action)
                 VALUES (?, ?, 'pending', 'preflight', datetime('now'), 'check preflight_result.json and fix issues')
diff --git a/deploy/profile-scripts/prepare_recommendation.py b/deploy/profile-scripts/prepare_recommendation.py
index 239912ae..a0b60957 100644
--- a/deploy/profile-scripts/prepare_recommendation.py
+++ b/deploy/profile-scripts/prepare_recommendation.py
@@ -23,6 +23,7 @@ SCRIPTS_DIR = os.path.dirname(os.path.abspath(__file__))
 def get_stock_info(code):
     """从数据库获取股票信息"""
     db = sqlite3.connect(DB_PATH)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     db.row_factory = sqlite3.Row
     try:
         # 检查持仓
diff --git a/deploy/profile-scripts/refresh_macro_context.py b/deploy/profile-scripts/refresh_macro_context.py
index de91b7f5..33488525 100644
--- a/deploy/profile-scripts/refresh_macro_context.py
+++ b/deploy/profile-scripts/refresh_macro_context.py
@@ -92,6 +92,7 @@ def main():
     ts = now.strftime("%Y-%m-%d %H:%M:%S")
     try:
         conn = sqlite3.connect(str(DB))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         conn.execute("""
             INSERT INTO macro_context_log 
             (data_timestamp, session, has_valid_data, indices, structure, created_at)
diff --git a/deploy/profile-scripts/resonance.py b/deploy/profile-scripts/resonance.py
index b134df8d..04699b75 100644
--- a/deploy/profile-scripts/resonance.py
+++ b/deploy/profile-scripts/resonance.py
@@ -25,6 +25,7 @@ def _flow_state(code):
     """资金维度: flow_5d / flow_delta → negative/neutral/positive/strong_positive"""
     try:
         conn = sqlite3.connect(DB)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         rows = conn.execute("""
             SELECT date, main_pct FROM stock_capital_flow
             WHERE code=? ORDER BY date DESC LIMIT 10
@@ -58,6 +59,7 @@ _NEG_KW = ['大跌','跌停','回落','下跌','下挫','走弱','资金流出',
 def sector_news_sentiment(sector, days=3):
     import sqlite3
     conn = sqlite3.connect('/home/hmo/MoFin/data/mofin.db')
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     try:
         stocks = conn.execute("SELECT code FROM stock_sectors_em WHERE sector=?", (sector,)).fetchall()
         if not stocks:
@@ -92,6 +94,7 @@ def _news_state(code, name=None, sector=None):
     since = (datetime.now() - timedelta(days=3)).strftime('%Y-%m-%d')
     try:
         conn = sqlite3.connect(DB)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         # 个股级优先（searched_stocks 或 summary 含代码/名称）
         rows = conn.execute("""
             SELECT overall_sentiment, summary, sector, created_at FROM signal_news
@@ -159,6 +162,7 @@ def evaluate_resonance(code, gate, name=None):
 def log_resonance(code, name, price, gate, res, signal_before, signal_after):
     """完整记录三维状态 → signal_veto_log（后续回测验证的数据资产）"""
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     conn.execute("""
         CREATE TABLE IF NOT EXISTS signal_veto_log (
             id INTEGER PRIMARY KEY AUTOINCREMENT,
diff --git a/deploy/profile-scripts/run_all_tests.py b/deploy/profile-scripts/run_all_tests.py
index 4e313b2f..3de4d64d 100644
--- a/deploy/profile-scripts/run_all_tests.py
+++ b/deploy/profile-scripts/run_all_tests.py
@@ -94,6 +94,7 @@ test("frozen_cash 已清零", pf.get('frozen_cash', 0) < 1, f"frozen_cash={pf.ge
 print("\n--- 6. P&L ---")
 import sqlite3
 db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
 rows = db.execute("SELECT code, name, cost, price, shares, currency FROM holdings WHERE is_active=1 AND shares>0").fetchall()
 pnl_issues = []
 for r in rows:
@@ -111,6 +112,7 @@ db.close()
 # ── 7. DB 完整性 ──
 print("\n--- 7. DB 完整性 ---")
 db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
 n_holds = db.execute("SELECT COUNT(*) FROM holdings WHERE is_active=1").fetchone()[0]
 n_strat = db.execute("SELECT COUNT(*) FROM holding_strategies WHERE status IN ('active','updated')").fetchone()[0]
 n_wl = db.execute("SELECT COUNT(*) FROM watchlist_stocks WHERE is_active=1").fetchone()[0]
diff --git a/deploy/profile-scripts/scan_external_api.py b/deploy/profile-scripts/scan_external_api.py
new file mode 100644
index 00000000..5166a448
--- /dev/null
+++ b/deploy/profile-scripts/scan_external_api.py
@@ -0,0 +1,36 @@
+import os
+
+results = {}
+for f in sorted(os.listdir(".")):
+    if not f.endswith(".py"):
+        continue
+    with open(f, errors="ignore") as fh:
+        content = fh.read()
+
+    hits = []
+    for i, line in enumerate(content.split("\n"), 1):
+        stripped = line.strip()
+        if stripped.startswith("#") or stripped.startswith('"""') or stripped.startswith("'''"):
+            continue
+        apis = []
+        if "qt.gtimg.cn" in line: apis.append("腾讯quote")
+        if "push2.eastmoney" in line or "eastmoney.com" in line: apis.append("东财")
+        if "ifzq.gtimg.cn" in line: apis.append("腾讯K线")
+        if "exchangerate-api" in line: apis.append("汇率API")
+        if "hq.sinajs" in line: apis.append("新浪行情")
+        if "web.sqt.gtimg.cn" in line: apis.append("腾讯sqt")
+        if "proxy.finance.qq.com" in line: apis.append("腾讯proxy")
+        if "stock.xueqiu.com" in line or "xueqiu.com" in line: apis.append("雪球")
+        if "finance.pae.baidu.com" in line or "baidu.com" in line: apis.append("百度")
+
+        if apis:
+            hits.append((i, "|".join(apis), stripped[:80]))
+
+    if hits:
+        results[f] = hits
+
+print("=== 全部外部API调用点 ===")
+for f, hits in sorted(results.items()):
+    print("\n%s (%d 处):" % (f, len(hits)))
+    for ln, api, code in hits:
+        print("  L%d [%s] %s" % (ln, api, code))
\ No newline at end of file
diff --git a/deploy/profile-scripts/sector_enrich_cninfo.py b/deploy/profile-scripts/sector_enrich_cninfo.py
index dab9a2d6..64740cf5 100644
--- a/deploy/profile-scripts/sector_enrich_cninfo.py
+++ b/deploy/profile-scripts/sector_enrich_cninfo.py
@@ -16,6 +16,7 @@ DB = "/home/hmo/MoFin/data/mofin.db"
 
 def main():
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     codes = [r[0] for r in conn.execute(
         "SELECT DISTINCT code FROM holding_strategies WHERE status='active'")]
     have = {r[0] for r in conn.execute("SELECT code FROM stock_sectors")}
diff --git a/deploy/profile-scripts/session_to_cron_bridge.py b/deploy/profile-scripts/session_to_cron_bridge.py
index 76d76214..5a6b1db7 100644
--- a/deploy/profile-scripts/session_to_cron_bridge.py
+++ b/deploy/profile-scripts/session_to_cron_bridge.py
@@ -126,6 +126,7 @@ def scan():
         return
     
     conn = sqlite3.connect(str(STATE_DB))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     conn.row_factory = sqlite3.Row
     cur = conn.cursor()
     
diff --git a/deploy/profile-scripts/stale_detector.py b/deploy/profile-scripts/stale_detector.py
index ba0f96eb..813a223a 100644
--- a/deploy/profile-scripts/stale_detector.py
+++ b/deploy/profile-scripts/stale_detector.py
@@ -84,6 +84,7 @@ def main():
     try:
         import sqlite3
         db = sqlite3.connect('/home/hmo/MoFin/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db.row_factory = sqlite3.Row
         wl_rows = db.execute(
             "SELECT code, name, entry_low, entry_high, stop_loss, take_profit, rr_ratio, timing_signal, action "
@@ -124,6 +125,7 @@ def main():
     try:
         import subprocess, sqlite3
         db = sqlite3.connect('/home/hmo/MoFin/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db.row_factory = sqlite3.Row
         wl_stocks = db.execute(
             "SELECT code, name, entry_low, entry_high "
@@ -182,6 +184,7 @@ def main():
         to_check = [d for d in decisions_list if (d.get("entry_low") is not None or d.get("entry_high") is not None) and d.get("status") not in EXCLUDED_STATUSES]
         # 重新合并自选（从 holding_strategies 读）
         db2 = sqlite3.connect('/home/hmo/MoFin/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db2.row_factory = sqlite3.Row
         wl_rows2 = db2.execute(
             "SELECT code, name, entry_low, entry_high, stop_loss, take_profit, rr_ratio, timing_signal, action "
diff --git a/deploy/profile-scripts/stock_profile.py b/deploy/profile-scripts/stock_profile.py
index 259ed456..a2161020 100644
--- a/deploy/profile-scripts/stock_profile.py
+++ b/deploy/profile-scripts/stock_profile.py
@@ -58,6 +58,7 @@ def load_macro() -> dict:
     try:
         import sqlite3
         conn = sqlite3.connect(os.path.join(DATA_DIR, "mofin.db"))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         row = conn.execute(
             "SELECT indices, structure, key_sectors FROM macro_context_log "
             "WHERE has_valid_data=1 ORDER BY created_at DESC LIMIT 1"
diff --git a/deploy/profile-scripts/stock_quote.py b/deploy/profile-scripts/stock_quote.py
index 951e5dde..59fa2417 100644
--- a/deploy/profile-scripts/stock_quote.py
+++ b/deploy/profile-scripts/stock_quote.py
@@ -303,6 +303,7 @@ def _get_name_from_cache(code):
     try:
         import sqlite3
         _db = sqlite3.connect(str(DATA_DIR / "mofin.db"))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         _db.row_factory = sqlite3.Row
         row = _db.execute("SELECT name FROM watchlist_stocks WHERE code=? AND is_active=1", (code,)).fetchone()
         _db.close()
diff --git a/deploy/profile-scripts/strategy-staleness-check.py b/deploy/profile-scripts/strategy-staleness-check.py
index 8b5c5031..3fa7e7eb 100644
--- a/deploy/profile-scripts/strategy-staleness-check.py
+++ b/deploy/profile-scripts/strategy-staleness-check.py
@@ -205,6 +205,7 @@ def main():
     stale_items = [s for s in flagged if any("[STRATEGY_STALE]" in f for f in s.get("flags", []))]
     if stale_items:
         conn = sqlite3.connect(DB_PATH)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         for s in stale_items:
             code = s["code"]
             existing = conn.execute("SELECT id FROM todos WHERE title LIKE ? AND status IN ('pending','in_progress')", (f"%{code}%",)).fetchone()
diff --git a/deploy/profile-scripts/strategy_alert.py b/deploy/profile-scripts/strategy_alert.py
index 01694c3b..27048fdb 100644
--- a/deploy/profile-scripts/strategy_alert.py
+++ b/deploy/profile-scripts/strategy_alert.py
@@ -37,6 +37,7 @@ ORANGE_PNL_RATIO = 0.5   # 盈亏比 < 0.5（赚的越来越少亏的越来越
 def rolling_stats(version, days=60):
     """从 strategy_research 提取该策略近期交易的滚动胜率/盈亏比"""
     c = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     rows = c.execute(
         "SELECT results_json FROM strategy_research WHERE version=? ORDER BY period_tag DESC LIMIT 1",
         (version,)
diff --git a/deploy/profile-scripts/strategy_lifecycle.py b/deploy/profile-scripts/strategy_lifecycle.py
index 35431fda..88241c64 100644
--- a/deploy/profile-scripts/strategy_lifecycle.py
+++ b/deploy/profile-scripts/strategy_lifecycle.py
@@ -707,6 +707,7 @@ def load_macro_context():
         import sqlite3
         from pathlib import Path
         conn = sqlite3.connect(str(Path(__file__).parent.parent / "data" / "mofin.db"))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         row = conn.execute(
             "SELECT indices, structure FROM macro_context_log "
             "WHERE has_valid_data=1 ORDER BY created_at DESC LIMIT 1"
@@ -748,6 +749,7 @@ def batch_fetch_prices(codes):
     try:
         import sqlite3
         db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db.row_factory = sqlite3.Row
         for raw_code in codes:
             raw_code = str(raw_code).split('_')[0]
@@ -817,6 +819,7 @@ def get_price_tencent(code):
     try:
         import sqlite3
         db = sqlite3.connect('/home/hmo/web-dashboard/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         db.row_factory = sqlite3.Row
         row = db.execute("SELECT price FROM holdings WHERE code=? AND is_active=1", (raw_code,)).fetchone()
         if not row:
diff --git a/deploy/profile-scripts/strategy_review.py b/deploy/profile-scripts/strategy_review.py
index 84bd8653..7d0ed669 100644
--- a/deploy/profile-scripts/strategy_review.py
+++ b/deploy/profile-scripts/strategy_review.py
@@ -208,6 +208,7 @@ def review():
     strategies = decisions.get("decisions", [])
 
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
 
     stats = {"correct": 0, "wrong": 0, "mixed": 0, "pending": 0, "total": 0}
     signal_fails = Counter()
diff --git a/deploy/profile-scripts/system_audit.py b/deploy/profile-scripts/system_audit.py
index d9b79524..0b74628c 100644
--- a/deploy/profile-scripts/system_audit.py
+++ b/deploy/profile-scripts/system_audit.py
@@ -175,6 +175,7 @@ def audit_pipeline():
     """遍历所有关键数据管道，检查生产者→存储→消费者链路是否完整"""
     today = datetime.now().strftime("%Y-%m-%d")
     conn = sqlite3.connect(str(DATA_DIR / "mofin.db"))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
 
     pipelines = [
         # 管道名, 生产者, 存储位置, 检查SQL/文件, 新鲜度阈值(天)
@@ -269,6 +270,7 @@ def audit_services():
 def main():
     start = time.time()
     conn = sqlite3.connect(str(DATA_DIR / "mofin.db"))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     
     audit_signals(conn)
     audit_stocks(conn)
diff --git a/deploy/profile-scripts/technical_analysis.py b/deploy/profile-scripts/technical_analysis.py
index 9694cc76..d1525b34 100644
--- a/deploy/profile-scripts/technical_analysis.py
+++ b/deploy/profile-scripts/technical_analysis.py
@@ -497,6 +497,7 @@ def analyze_volume_deep(code):
         DATA_DIR = Path(__file__).parent / "data"
     try:
         conn = sqlite3.connect(str(DATA_DIR / "mofin.db"))
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         row = conn.execute("SELECT cache_json FROM mtf_cache WHERE code=?", (code,)).fetchone()
         conn.close()
         if not row:
@@ -623,6 +624,7 @@ def _calc_scores(code: str) -> dict:
     try:
         import sqlite3
         conn = sqlite3.connect('/home/hmo/MoFin/data/mofin.db')
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         rows = conn.execute(
             "SELECT close, high, low, volume FROM stock_daily WHERE code=? ORDER BY date DESC LIMIT 30",
             (code,)).fetchall()
diff --git a/deploy/profile-scripts/ths_news.py b/deploy/profile-scripts/ths_news.py
index dc2af2d8..af550af7 100644
--- a/deploy/profile-scripts/ths_news.py
+++ b/deploy/profile-scripts/ths_news.py
@@ -25,6 +25,7 @@ def get_market_id(code):
 def get_codes():
     """从 v8.1 5y 策略交易取 58 只股票"""
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     codes = set()
     for r in conn.execute("SELECT results_json FROM strategy_research WHERE version='v8.1' AND period_tag='5y'").fetchall():
         for t in json.loads(r[0])['trades']:
@@ -98,6 +99,7 @@ def run_backfill():
     codes = get_codes()
     print(f"=== 同花顺新闻回填: {len(codes)} 只股票 ===", flush=True)
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     init_table(conn)
     total_new = 0
     for idx, code in enumerate(codes, 1):
@@ -123,6 +125,7 @@ def run_daily():
     codes = get_codes()
     print(f"=== 同花顺每日更新: {len(codes)} 只股票 ===", flush=True)
     conn = sqlite3.connect(DB)
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     init_table(conn)
     total_new = 0
     for idx, code in enumerate(codes, 1):
diff --git a/deploy/profile-scripts/trend_detector.py b/deploy/profile-scripts/trend_detector.py
index 96ed51fb..1ceee050 100644
--- a/deploy/profile-scripts/trend_detector.py
+++ b/deploy/profile-scripts/trend_detector.py
@@ -24,6 +24,7 @@ DB_PATH = DATA_DIR / "mofin.db"
 
 def get_conn():
     conn = sqlite3.connect(str(DB_PATH))
+    conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
     conn.row_factory = sqlite3.Row
     return conn
 
diff --git a/deploy/profile-scripts/vacuum_state_db.py b/deploy/profile-scripts/vacuum_state_db.py
index 9e0eb839..8cdf25eb 100644
--- a/deploy/profile-scripts/vacuum_state_db.py
+++ b/deploy/profile-scripts/vacuum_state_db.py
@@ -23,6 +23,7 @@ for db_path in DBS:
     size_before = os.path.getsize(db_path) / 1024 / 1024
     try:
         c = sqlite3.connect(db_path)
+        conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
         c.execute("PRAGMA auto_vacuum=2")
         # 只做incremental vacuum，不做full vacuum（耗时太长）
         c.execute("PRAGMA incremental_vacuum(50000)")
diff --git a/deploy/profile-scripts/verify_reassess_pipeline.py b/deploy/profile-scripts/verify_reassess_pipeline.py
index 04c8adfb..29e663c9 100644
--- a/deploy/profile-scripts/verify_reassess_pipeline.py
+++ b/deploy/profile-scripts/verify_reassess_pipeline.py
@@ -81,6 +81,7 @@ def check_cron_jobs():
             continue
         try:
             c = sqlite3.connect(str(db_path))
+            conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
             for row in c.execute("""
                 SELECT id, name, last_status, last_run_at, enabled
                 FROM cron_jobs WHERE enabled=1
@@ -112,6 +113,7 @@ def run():
         for _attempt in range(2):
             try:
                 conn = sqlite3.connect("/home/hmo/MoFin/data/mofin.db")
+                conn.execute("PRAGMA busy_timeout=30000")  # 2026-08-28 防并发写锁(DB损坏教训)
                 conn.execute("SELECT 1 FROM live_prices LIMIT 1").fetchone()
                 break
             except Exception as e: