fix: 出现人物统计去重 + 导航移至页面顶部

- person 字段是自由文本，一帧可为多人组合且带括号特征描述
  ('张三 (红色T恤), 汤圆, 人物3')，COUNT(DISTINCT person) 把每种
  组合字符串当一个人物，全局误报 20 人。新增 resolve_persons:
  去括号描述 -> 按中英逗号/顿号/斜杠拆分 -> family_members
  抽象标签映射真名，去重后全局实际 6 人
- 导航从侧边栏 radio 改为顶部 segmented_control：窄屏下
  Streamlit 侧边栏自动收起，页面入口藏进汉堡菜单导致
  "成员命名/问答界面不见了"；放主区域顶部任何屏宽可见

fam-ui/src/app.py

@@ -6,6 +6,7 @@ FAM-UI - 家庭多模态智能监控系统前端 v2
 - AI 对话 / 对话历史 / 成员命名 / 统计图表
 """
 import os
+import re
 import sys
 import json
 import base64
@@ -59,6 +60,22 @@ def parse_ts(ts):
         return None
 
 
+def resolve_persons(person_str, alias_map):
+    """解析一帧 person 字段为真实人物集合
+
+    person 是自由文本，可能为多人组合且带括号特征描述，如
+    '张三 (红色T恤, 白色裤子), 汤圆 (蓝色上衣), 人物3'。
+    统计真实人数需: 去括号描述 -> 按分隔符拆分 -> 抽象标签映射真名。
+    """
+    s = re.sub(r'[（(][^（()）]*[）)]', '', person_str or '')
+    out = set()
+    for n in re.split(r'[,，、/]+', s):
+        n = n.strip()
+        if n and n != '无人':
+            out.add(alias_map.get(n, n))
+    return out
+
+
 def load_frame_b64(event_id, frame_index):
     """读取落盘关键帧为 base64，不存在返回 None"""
     path = os.path.join(FRAME_DIR, f'event_{event_id}', f'frame_{frame_index}.jpg')
@@ -383,13 +400,13 @@ st.sidebar.markdown(
     '<div style="font-size:11px;color:#64748b;margin-top:3px;">SENTINEL HOME AI</div>'
     '</div>', unsafe_allow_html=True)
 
-page = st.sidebar.radio("功能页面", [
-    "🕒 事件时间轴",
-    "💬 AI 对话",
-    "📝 对话历史",
-    "👤 成员命名",
-    "📈 统计图表"
-], label_visibility="collapsed")
+# 顶部横向导航（窄屏下侧边栏自动收起，放主区域保证任何屏宽都可见）
+page = st.segmented_control(
+    "功能页面",
+    ["🕒 事件时间轴", "💬 AI 对话", "📝 对话历史", "👤 成员命名", "📈 统计图表"],
+    default="🕒 事件时间轴",
+    label_visibility="collapsed"
+) or "🕒 事件时间轴"
 
 # 侧边栏底部：任务队列状态
 try:
@@ -433,26 +450,41 @@ if page == "🕒 事件时间轴":
         conn = get_db_conn()
         try:
             cursor = conn.cursor()
+            cursor.execute(
+                "SELECT abstract_label, real_name FROM family_members "
+                "WHERE real_name IS NOT NULL AND is_active = TRUE")
+            alias_map = {r['abstract_label']: r['real_name'] for r in cursor.fetchall()}
+
             if date_str:
                 cursor.execute("""
                     SELECT COUNT(DISTINCT me.event_id) AS ev,
                            COUNT(ed.detail_id) AS fr,
-                           COALESCE(SUM(ed.is_attention_event), 0) AS att,
-                           COUNT(DISTINCT CASE WHEN ed.person <> '无人' THEN ed.person END) AS ps
+                           COALESCE(SUM(ed.is_attention_event), 0) AS att
                     FROM monitor_events me
                     LEFT JOIN event_details ed ON ed.event_id = me.event_id
                     WHERE DATE(me.event_start_time) = %s
                 """, (date_str,))
+                s = cursor.fetchone() or {}
+                cursor.execute(
+                    """SELECT ed.person FROM event_details ed
+                       JOIN monitor_events me ON me.event_id = ed.event_id
+                       WHERE DATE(me.event_start_time) = %s""", (date_str,))
             else:
                 cursor.execute("""
                     SELECT COUNT(DISTINCT me.event_id) AS ev,
                            COUNT(ed.detail_id) AS fr,
-                           COALESCE(SUM(ed.is_attention_event), 0) AS att,
-                           COUNT(DISTINCT CASE WHEN ed.person <> '无人' THEN ed.person END) AS ps
+                           COALESCE(SUM(ed.is_attention_event), 0) AS att
                     FROM monitor_events me
                     LEFT JOIN event_details ed ON ed.event_id = me.event_id
                 """)
                 s = cursor.fetchone() or {}
+                cursor.execute(
+                    "SELECT ed.person FROM event_details ed "
+                    "JOIN monitor_events me ON me.event_id = ed.event_id")
+            persons = set()
+            for r in cursor.fetchall():
+                persons |= resolve_persons(r['person'], alias_map)
+            s['ps'] = len(persons)
         finally:
             conn.close()