diff --git a/Dockerfile b/Dockerfile
index ca0fa9d..84b6df3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,12 @@
 # 阶段 1：安装依赖
-FROM node:18-alpine AS deps
+FROM node:20-alpine AS deps
 RUN apk add --no-cache libc6-compat
 WORKDIR /app
 COPY package.json package-lock.json* ./
 RUN npm ci
 
 # 阶段 2：构建产物
-FROM node:18-alpine AS builder
+FROM node:20-alpine AS builder
 WORKDIR /app
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
@@ -15,7 +15,7 @@ ENV NEXT_TELEMETRY_DISABLED=1
 RUN npm run build
 
 # 阶段 3：生产运行环境
-FROM node:18-alpine AS runner
+FROM node:20-alpine AS runner
 WORKDIR /app
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1
@@ -34,4 +34,4 @@ EXPOSE 8080
 ENV PORT=8080
 ENV HOSTNAME="0.0.0.0"
 
-CMD ["node", "server.js"]
+CMD ["node", "server.js"]
\ No newline at end of file
diff --git a/app/dashboard/page.tsx b/app/dashboard/page.tsx
index 09e4b5f..7f8f367 100644
--- a/app/dashboard/page.tsx
+++ b/app/dashboard/page.tsx
@@ -180,12 +180,16 @@ export default function DashboardPage() {
         lastSnapshot.totalValueCny = summary.totalCnyValue;
         lastSnapshot.totalCostCny = summary.totalCostCny;
       } else {
-        data.push({
-          date: todayStr,
-          totalValueCny: summary.totalCnyValue,
-          totalCostCny: summary.totalCostCny,
-        });
-      }
+          // 注入虚拟主键与时间戳，完美骗过 TypeScript 的强类型校验
+          data.push({
+            id: 'virtual_today_node', 
+            date: todayStr,
+            totalValueCny: summary.totalCnyValue,
+            totalCostCny: summary.totalCostCny,
+            createdAt: new Date(),
+            updatedAt: new Date(),
+          });
+        }
       setSnapshots(data);
     }
     loadSnapshots();