feat: restructure into XFlow monorepo with Nuxt 4, Modular Onion Monolith, Android client, and Desktop CLI

apps/web/app/components/AchievementOverlay.vue

@@ -0,0 +1,64 @@
+<template>
+  <Teleport to="body">
+    <TransitionGroup
+      name="achievement"
+      tag="div"
+      class="fixed bottom-4 right-4 z-50 flex flex-col gap-2"
+    >
+      <div
+        v-for="ach in visibleAchievements"
+        :key="ach.id"
+        class="bg-slate-800 border border-yellow-500/50 rounded-xl p-4 shadow-2xl max-w-sm flex items-start gap-3"
+      >
+        <div class="text-3xl">{{ ach.icon || '🏆' }}</div>
+        <div>
+          <h4 class="font-bold text-yellow-400 text-sm">{{ ach.title }}</h4>
+          <p class="text-xs text-slate-400 mt-0.5">{{ ach.description }}</p>
+        </div>
+        <button
+          @click="dismiss(ach.id)"
+          class="text-slate-500 hover:text-slate-300 ml-2"
+        >
+          ✕
+        </button>
+      </div>
+    </TransitionGroup>
+  </Teleport>
+</template>
+
+<script setup>
+const props = defineProps({
+  achievements: { type: Array, default: () => [] }
+})
+
+const visibleAchievements = ref([])
+
+watch(() => props.achievements, (newAchievements) => {
+  const incoming = newAchievements.filter(a => !visibleAchievements.value.find(v => v.id === a.id))
+  incoming.forEach(ach => {
+    visibleAchievements.value.push(ach)
+    setTimeout(() => dismiss(ach.id), 5000)
+  })
+}, { deep: true, immediate: true })
+
+const dismiss = (id) => {
+  visibleAchievements.value = visibleAchievements.value.filter(a => a.id !== id)
+}
+</script>
+
+<style scoped>
+.achievement-enter-active,
+.achievement-leave-active {
+  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.achievement-enter-from {
+  opacity: 0;
+  transform: translateX(100%) scale(0.9);
+}
+
+.achievement-leave-to {
+  opacity: 0;
+  transform: translateX(100%) scale(0.9);
+}
+</style>