feat(oa): add overtime kit form components and designer registration

Co-authored-by: Cursor <cursoragent@cursor.com>

web-admin/src/components/oa-approval/OaOvertimeKit.vue

@@ -0,0 +1,23 @@
+<!-- 加班套件：仅组合容器；时长手动填写，无自动计算 -->
+<template>
+  <div class="oa-overtime-kit" v-bind="$attrs">
+    <slot />
+  </div>
+</template>
+
+<script setup lang="ts">
+  defineOptions({ name: 'OaOvertimeKit', inheritAttrs: false })
+
+  defineProps<{
+    personField?: string
+    startField?: string
+    endField?: string
+    durationField?: string
+  }>()
+</script>
+
+<style scoped lang="scss">
+  .oa-overtime-kit {
+    width: 100%;
+  }
+</style>