feat: add member modal, evaluator add refactor

frontend/src/components/Modals/AddEvaluatorModal.vue

@@ -0,0 +1,65 @@
+<template>
+	<Dialog
+		v-model="show"
+		:options="{
+			title: __('Add Existing User as Evaluator'),
+			size: 'md',
+			actions: [
+				{
+					label: __('Add'),
+					variant: 'solid',
+					loading: submitting,
+					onClick: ({ close }: any) => addEvaluator(close),
+				},
+			],
+		}"
+	>
+		<template #body-content>
+			<Link doctype="User" v-model="selectedUser" :label="__('Select User')" />
+		</template>
+	</Dialog>
+</template>
+
+<script setup lang="ts">
+import { call, Dialog, toast } from 'frappe-ui'
+import { ref, watch } from 'vue'
+import { cleanError } from '@/utils'
+import Link from '@/components/Controls/Link.vue'
+
+const show = defineModel<boolean>({ default: false })
+const selectedUser = ref('')
+const submitting = ref(false)
+
+const emit = defineEmits<{
+	added: []
+}>()
+
+watch(show, (isOpen) => {
+	if (isOpen) {
+		selectedUser.value = ''
+	}
+})
+
+const addEvaluator = async (close?: () => void) => {
+	if (!selectedUser.value?.trim()) {
+		toast.error(__('Please select a user'))
+		return
+	}
+
+	submitting.value = true
+	try {
+		await call('lms.lms.api.save_role', {
+			user: selectedUser.value,
+			role: 'Batch Evaluator',
+			value: 1,
+		})
+		toast.success(__('Evaluator added successfully'))
+		emit('added')
+		close?.()
+	} catch (err: any) {
+		toast.error(cleanError(err.messages?.[0]) || __('Unable to add evaluator'))
+	} finally {
+		submitting.value = false
+	}
+}
+</script>