fix: dashboard布局重构 - 修复遮挡/热门模型金额/今日指标缺失

1. 热门模型: valueFields改为[total_amount, cnt]，与用户/供应商一致
2. 布局重构:
   - 第一行: 今日调用总量+今日交易金额(2个50%宽卡片)
   - 第二行: 用户总数+活跃用户+在线用户+记账异常(4个25%宽卡片)
   - 第三行: 热门模型+用户排行+供应商排行(3个33%宽图表)
3. 图表高度统一250px，间距16px
4. 移除ResponsableBox改用HBox，避免卡片溢出遮挡
5. 移除stat_new_users_month和stat_total_orgs，精简指标

wwwroot/chart_top_models.ui

@@ -1,10 +1,10 @@
 {
     "widgettype": "ChartBar",
     "options": {
-        "height": "210px",
+        "height": "250px",
         "width": "100%",
         "data_url": "{{entire_url('api/top_models.dspy')}}",
         "nameField": "model_name",
-        "valueFields": ["cnt", "total_amount"]
+        "valueFields": ["total_amount", "cnt"]
     }
 }

wwwroot/chart_top_providers.ui

@@ -1,7 +1,7 @@
 {
     "widgettype": "ChartBar",
     "options": {
-        "height": "210px",
+        "height": "250px",
         "data_url": "{{entire_url('api/top_providers.dspy')}}",
         "nameField": "provider_name",
         "valueFields": ["total_amount", "cnt"]

wwwroot/chart_top_users.ui

@@ -1,7 +1,7 @@
 {
     "widgettype": "ChartBar",
     "options": {
-        "height": "210px",
+        "height": "250px",
         "data_url": "{{entire_url('api/top_users.dspy')}}",
         "nameField": "user_name",
         "valueFields": ["total_amount", "cnt"]

wwwroot/index.ui

@@ -36,7 +36,7 @@
                 {
                     "widgettype": "Text",
                     "options": {
-                        "text": "最后更新: {{get_today_usage(request) and request._run_ns.curDateString() or ''}}",
+                        "text": "{{get_today_usage(request) and request._run_ns.curDateString() or ''}}",
                         "fontSize": "13px"
                     }
                 },
@@ -65,11 +65,10 @@
         }
         {% if 'owner.*' in roles or 'reseller.*' in roles %}
         ,{
-            "widgettype": "ResponsableBox",
+            "widgettype": "HBox",
             "options": {
                 "width": "100%",
                 "gap": "16px",
-                "minWidth": "180px",
                 "marginBottom": "16px"
             },
             "subwidgets": [
@@ -78,7 +77,8 @@
                     "id": "stat_today_usage",
                     "options": {
                         "period_seconds": 30,
-                        "url": "{{entire_url('stat_today_usage.ui')}}"
+                        "url": "{{entire_url('stat_today_usage.ui')}}",
+                        "width": "50%"
                     }
                 },
                 {
@@ -86,15 +86,27 @@
                     "id": "stat_today_amount",
                     "options": {
                         "period_seconds": 30,
-                        "url": "{{entire_url('stat_today_amount.ui')}}"
+                        "url": "{{entire_url('stat_today_amount.ui')}}",
+                        "width": "50%"
                     }
-                },
+                }
+            ]
+        },
+        {
+            "widgettype": "HBox",
+            "options": {
+                "width": "100%",
+                "gap": "16px",
+                "marginBottom": "16px"
+            },
+            "subwidgets": [
                 {
                     "widgettype": "RefreshWidget",
                     "id": "stat_total_users",
                     "options": {
                         "period_seconds": 60,
-                        "url": "{{entire_url('stat_total_users.ui')}}"
+                        "url": "{{entire_url('stat_total_users.ui')}}",
+                        "width": "25%"
                     }
                 },
                 {
@@ -102,7 +114,8 @@
                     "id": "stat_active_users",
                     "options": {
                         "period_seconds": 60,
-                        "url": "{{entire_url('stat_active_users.ui')}}"
+                        "url": "{{entire_url('stat_active_users.ui')}}",
+                        "width": "25%"
                     }
                 },
                 {
@@ -110,7 +123,8 @@
                     "id": "stat_concurrent",
                     "options": {
                         "period_seconds": 15,
-                        "url": "{{entire_url('stat_concurrent.ui')}}"
+                        "url": "{{entire_url('stat_concurrent.ui')}}",
+                        "width": "25%"
                     }
                 },
                 {
@@ -118,34 +132,8 @@
                     "id": "stat_errors",
                     "options": {
                         "period_seconds": 30,
-                        "url": "{{entire_url('stat_errors.ui')}}"
+                        "url": "{{entire_url('stat_errors.ui')}}",
-                    }
+                        "width": "25%"
-                }
-            ]
-        },
-        {
-            "widgettype": "ResponsableBox",
-            "options": {
-                "width": "100%",
-                "gap": "16px",
-                "minWidth": "180px",
-                "marginBottom": "16px"
-            },
-            "subwidgets": [
-                {
-                    "widgettype": "RefreshWidget",
-                    "id": "stat_new_users_month",
-                    "options": {
-                        "period_seconds": 120,
-                        "url": "{{entire_url('stat_new_users_month.ui')}}"
-                    }
-                },
-                {
-                    "widgettype": "RefreshWidget",
-                    "id": "stat_total_orgs",
-                    "options": {
-                        "period_seconds": 120,
-                        "url": "{{entire_url('stat_total_orgs.ui')}}"
                     }
                 }
             ]
@@ -419,4 +407,4 @@
             ]
         }
     ]
-}
+}