feat(routing): consolidate scheduling strategy configuration

frontend/src/components/common/HelpHint.vue

@@ -0,0 +1,33 @@
+<script setup lang="ts">
+import { ref } from 'vue'
+import { CircleHelp } from 'lucide-vue-next'
+
+const props = defineProps<{
+  label: string
+  text: string
+}>()
+
+const open = ref(false)
+</script>
+
+<template>
+  <span class="group relative inline-flex">
+    <button
+      type="button"
+      class="inline-flex items-center justify-center rounded-sm p-0.5 text-muted-foreground/60 transition-colors hover:bg-muted/60 hover:text-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
+      :aria-label="`${props.label}说明`"
+      :aria-expanded="open"
+      :title="props.text"
+      @click.stop="open = !open"
+    >
+      <CircleHelp class="h-3.5 w-3.5" />
+    </button>
+    <span
+      role="tooltip"
+      class="pointer-events-none invisible absolute left-1/2 top-full z-[230] mt-2 w-max max-w-xs -translate-x-1/2 rounded-md border bg-popover px-3 py-2 text-xs leading-5 text-popover-foreground opacity-0 shadow-md transition-opacity group-hover:visible group-hover:opacity-100 group-focus-within:visible group-focus-within:opacity-100"
+      :class="open ? 'visible opacity-100' : ''"
+    >
+      {{ props.text }}
+    </span>
+  </span>
+</template>