chore(admin): Update build configuration and ignore analysis reports

- Add report.html files to .gitignore to exclude analysis reports from version control
- Update build time configuration to include milliseconds for unique timestamps
- Add explanatory comment for build time millisecond precision
- Regenerate bundle analysis report with updated build configuration

.gitignore

@@ -7,6 +7,10 @@ dist-ssr
 apps/*/dist
 packages/*/dist
 
+# --- 分析报告文件 ---
+report.html
+apps/*/report.html
+
 # --- 日志文件 ---
 logs
 *.log

apps/admin/build/config/time.ts

@@ -6,7 +6,9 @@ export function getBuildTime() {
   dayjs.extend(utc)
   dayjs.extend(timezone)
 
-  const buildTime = dayjs.tz(Date.now(), 'Asia/Shanghai').format('YYYY-MM-DD HH:mm:ss')
+  // 添加随机毫秒确保每次构建时间唯一
+  const now = Date.now()
+  const buildTime = dayjs.tz(now, 'Asia/Shanghai').format('YYYY-MM-DD HH:mm:ss.SSS')
 
   return buildTime
 }