docs: unix timestamp

packages/core/client/.dumirc.ts

@@ -254,6 +254,10 @@ export default defineConfig({
               "title": "DatePicker",
               "link": "/components/date-picker"
             },
+            {
+              "title": "UnixTimestamp",
+              "link": "/components/unix-timestamp"
+            },
             {
               "title": "TimePicker",
               "link": "/components/time-picker"

packages/core/client/src/schema-component/antd/unix-timestamp/index.md

@@ -1,9 +1,13 @@
 # UnixTimestamp
 
+`UnixTimestamp` 是一个基于 `antd` 的DatePicker组件的封装。
+
+
 ```ts
 interface UnixTimestampProps {
   value?: number;
    accuracy?: 'millisecond' | 'second';
+  onChange?: (value: number) => void;
 }
 ```