Replace plain text search with Fuse.js fuzzy search

Uses the existing FuzzySearch component and useFuzzySearch composable
(same pattern as market module). Searches across title (50%), summary
(20%), description (15%), location (10%), and tags (5%) with threshold
0.35. Fuzzy search feeds into the display list after temporal/category/
date filters are applied. Removed manual string search from filter
composable.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/modules/activities/composables/useActivityFilters.ts

@@ -14,13 +14,11 @@ import { DEFAULT_FILTERS } from '../types/filters'
 export function useActivityFilters() {
   const temporal = ref<TemporalFilter>(DEFAULT_FILTERS.temporal)
   const selectedCategories = ref<ActivityCategory[]>([])
-  const searchQuery = ref('')
   const selectedDate = ref<Date | undefined>(undefined)
 
   const filters = computed<ActivityFilters>(() => ({
     temporal: temporal.value,
     categories: selectedCategories.value,
-    search: searchQuery.value || undefined,
   }))
 
   /**
@@ -49,17 +47,6 @@ export function useActivityFilters() {
       )
     }
 
-    // Search filter
-    if (searchQuery.value.trim()) {
-      const query = searchQuery.value.toLowerCase().trim()
-      result = result.filter(a =>
-        a.title.toLowerCase().includes(query) ||
-        a.summary?.toLowerCase().includes(query) ||
-        a.description.toLowerCase().includes(query) ||
-        a.location?.toLowerCase().includes(query)
-      )
-    }
-
     return result
   }
 
@@ -93,14 +80,12 @@ export function useActivityFilters() {
   function resetFilters() {
     temporal.value = DEFAULT_FILTERS.temporal
     selectedCategories.value = []
-    searchQuery.value = ''
     selectedDate.value = undefined
   }
 
   const hasActiveFilters = computed(() =>
     temporal.value !== 'all' ||
     selectedCategories.value.length > 0 ||
-    searchQuery.value.trim().length > 0 ||
     selectedDate.value !== undefined
   )
 
@@ -108,7 +93,6 @@ export function useActivityFilters() {
     // State
     temporal,
     selectedCategories,
-    searchQuery,
     selectedDate,
     filters,
     hasActiveFilters,

src/modules/activities/views/ActivitiesPage.vue

@@ -1,16 +1,17 @@
 <script setup lang="ts">
-import { onMounted, ref } from 'vue'
+import { onMounted, ref, computed } from 'vue'
 import { useRouter } from 'vue-router'
 import { useI18n } from 'vue-i18n'
 import { Button } from '@/components/ui/button'
-import { Input } from '@/components/ui/input'
 import {
   Collapsible,
   CollapsibleContent,
   CollapsibleTrigger,
 } from '@/components/ui/collapsible'
-import { RefreshCw, Search, SlidersHorizontal, ChevronDown, Plus } from 'lucide-vue-next'
+import { FuzzySearch } from '@/components/ui/fuzzy-search'
+import { RefreshCw, SlidersHorizontal, ChevronDown, Plus } from 'lucide-vue-next'
 import { useAuth } from '@/composables/useAuthService'
+import type { FuzzySearchOptions } from '@/composables/useFuzzySearch'
 import { useActivities } from '../composables/useActivities'
 import CreateActivityDialog from '../components/CreateActivityDialog.vue'
 import TemporalFilterBar from '../components/TemporalFilterBar.vue'
@@ -31,7 +32,6 @@ const {
   error,
   temporal,
   selectedCategories,
-  searchQuery,
   hasActiveFilters,
   selectedDate,
   selectDate,
@@ -44,6 +44,36 @@ const {
 } = useActivities()
 
 const filtersOpen = ref(false)
+const fuzzyResults = ref<Activity[]>([])
+const isFuzzySearching = ref(false)
+
+const searchOptions: FuzzySearchOptions<Activity> = {
+  fuseOptions: {
+    keys: [
+      { name: 'title', weight: 0.5 },
+      { name: 'summary', weight: 0.2 },
+      { name: 'description', weight: 0.15 },
+      { name: 'location', weight: 0.1 },
+      { name: 'tags', weight: 0.05 },
+    ],
+    threshold: 0.35,
+    ignoreLocation: true,
+  },
+  matchAllWhenSearchEmpty: true,
+  minSearchLength: 2,
+}
+
+const displayedActivities = computed(() => {
+  return isFuzzySearching.value ? fuzzyResults.value : activities.value
+})
+
+function handleSearchResults(results: Activity[]) {
+  fuzzyResults.value = results
+}
+
+function handleSearch(query: string) {
+  isFuzzySearching.value = query.trim().length >= 2
+}
 
 onMounted(() => {
   subscribe()
@@ -80,13 +110,15 @@ function handleRefresh() {
       </div>
     </div>
 
-    <!-- Search bar -->
-    <div class="relative mb-4">
-      <Search class="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-muted-foreground" />
-      <Input
-        v-model="searchQuery"
+    <!-- Fuzzy search -->
+    <div class="mb-4">
+      <FuzzySearch
+        :data="activities"
+        :options="searchOptions"
         placeholder="Search activities..."
-        class="pl-9"
+        :show-result-count="false"
+        @search="handleSearch"
+        @results="handleSearchResults"
       />
     </div>
 
@@ -136,7 +168,7 @@ function handleRefresh() {
 
     <!-- Activity feed -->
     <ActivityList
-      :activities="activities"
+      :activities="displayedActivities"
       :is-loading="isLoading"
       @select="handleSelectActivity"
     />