币种标记标准化 + data-pipeline诊断文档

stale_detector: HK股价格输出加(HKD)标记，防止LLM混读CNY/HKD
per_stock_reassess: 写回decisions.json的HK股加上currency: HKD
docs/data-pipeline-diagnosis.md: 完整数据管道重构需求文档

避免建滔积层板CNY/HKD错配类问题复发

scripts/stale_detector.py

@@ -55,6 +55,9 @@ def fetch_prices(codes):
             if not oc:
                 continue
             p = float(fld[3]) if fld[3] else 0
+            # NOTE: HK stock prices kept in HKD — decisions.json also stores HK values in HKD
+            # (stop_loss/take_profit/entry). Never convert here or we mismatch CNY price vs HKD stop.
+            # Downstream tools that need CNY should convert at display time.
             c = fld[32] if len(fld) > 32 else "0"
             results[oc] = (p, c)
         except (ValueError, IndexError):
@@ -120,6 +123,10 @@ def main():
 
         issues, flags = [], []
         tag = "[自选]" if is_wl else "[持仓]"
+        # 币种标记（港股HKD vs A股CNY，辅助下游LLM避免混读）
+        currency_suffix = "(HKD)" if len(str(code)) == 5 and str(code)[0] in '01' else ""
+        price_str = f"{price:.2f}{currency_suffix}"
+        buy_zone_str = f"{el}~{eh}{currency_suffix}" if currency_suffix else f"{el}~{eh}"
 
         # -- 偏离 --
         if is_wl and el and eh:
@@ -152,16 +159,16 @@ def main():
                 if strategy_deficient:
                     flags.append("[STRATEGY_STALE]")
                     prefix = "⚠️仓位挤占 " if position_pct > 80 else ""
-                    issues.append(f"[STRATEGY_STALE] {prefix}价{price:.2f}在买入区{el}~{eh}但策略不完整（{'RR='+f'{rr:.2f}<1.5' if rr_invalid else '无止盈位' if not tp else '非买入信号'}），买入区需重评")
+                    issues.append(f"[STRATEGY_STALE] {prefix}价{price_str}在买入区{buy_zone_str}但策略不完整（{'RR='+f'{rr:.2f}<1.5' if rr_invalid else '无止盈位' if not tp else '非买入信号'}），买入区需重评")
                 else:
                     prefix = "⚠️仓位挤占 " if position_pct > 80 else ""
-                    issues.append(f"[PUSH] {prefix}价{price:.2f}入买入区{el}~{eh}")
+                    issues.append(f"[PUSH] {prefix}价{price_str}入买入区{buy_zone_str}")
             elif price > eh * 1.35:
                 flags.append("[WL_HIGH]")
-                issues.append(f"价{price:.2f}高出买入区+{((price/eh)-1)*100:.0f}%，买入区需重评")
+                issues.append(f"价{price_str}高出买入区+{((price/eh)-1)*100:.0f}%，买入区需重评")
             elif price > eh * 1.20:
                 flags.append("[WL_DRIFT]")
-                issues.append(f"价{price:.2f}高于买入区+{((price/eh)-1)*100:.0f}%")
+                issues.append(f"价{price_str}高于买入区+{((price/eh)-1)*100:.0f}%")
         elif not is_wl and eh:
             dp = (price / eh - 1) * 100
             if dp > 35:
@@ -215,7 +222,7 @@ def main():
                 pass
 
         if issues:
-            print(f"{' '.join(flags)} {tag} {name}({code}) 价{price:.2f}{chg} | 买入{el}~{eh} | {'; '.join(issues)}")
+            print(f"{' '.join(flags)} {tag} {name}({code}) 价{price_str}{chg} | 买入{el}~{eh} | {'; '.join(issues)}")
             found += 1
 
     if found == 0: