refactor(libra): collapse type filter + voided switch into category chips

Each chip toggles inclusion of one bucket of rows. Every row belongs to
exactly one bucket — voided rows go to the Voided bucket regardless of
their underlying type — so the model is straightforward:

  [Income] [Expenses] [Voided]
     |         |          |
  income     expense    voided
  (non-voided only)    (any type)

Defaults: Income + Expenses on, Voided off. Independent multi-select.
Empty selection shows the empty state with a 'select a category' hint
instead of an open-ended 'try a different time period'.

Replaces the previous 'type radio + voided switch' pair: same axes, one
control type, no left/right visual split.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/modules/expenses/views/TransactionsPage.vue

@@ -11,8 +11,6 @@ import FuzzySearch from '@/components/ui/fuzzy-search/FuzzySearch.vue'
 import { Button } from '@/components/ui/button'
 import { Badge } from '@/components/ui/badge'
 import { Input } from '@/components/ui/input'
-import { Switch } from '@/components/ui/switch'
-import { Label } from '@/components/ui/label'
 import {
   CheckCircle2,
   Clock,
@@ -32,15 +30,26 @@ const isLoading = ref(false)
 const dateRangeType = ref<number | 'custom'>(15) // 15, 30, 60, or 'custom'
 const customStartDate = ref<string>('')
 const customEndDate = ref<string>('')
-const typeFilter = ref<'all' | 'income' | 'expense'>('all')
-const showVoided = ref(false)
+// Each chip is an inclusion toggle for one bucket of rows. Every row
+// belongs to exactly one bucket (voided rows go to 'voided' regardless
+// of their income/expense type). Default hides voided.
+type Category = 'income' | 'expense' | 'voided'
 
-const typeFilterOptions = [
-  { label: 'All', value: 'all' as const },
-  { label: 'Income', value: 'income' as const },
-  { label: 'Expenses', value: 'expense' as const }
+const activeCategories = ref<Set<Category>>(new Set<Category>(['income', 'expense']))
+
+const categoryChips: { label: string; value: Category }[] = [
+  { label: 'Income', value: 'income' },
+  { label: 'Expenses', value: 'expense' },
+  { label: 'Voided', value: 'voided' }
 ]
 
+function toggleCategory(cat: Category) {
+  const next = new Set(activeCategories.value)
+  if (next.has(cat)) next.delete(cat)
+  else next.add(cat)
+  activeCategories.value = next
+}
+
 function isIncome(t: Transaction): boolean {
   return t.tags?.includes('income-entry') ?? false
 }
@@ -57,6 +66,14 @@ function isPending(t: Transaction): boolean {
   return t.flag === '!' && !isVoided(t)
 }
 
+// Which chip bucket a row falls into. Voided always wins over type.
+function getBucket(t: Transaction): Category | null {
+  if (isVoided(t)) return 'voided'
+  if (isIncome(t)) return 'income'
+  if (isExpense(t)) return 'expense'
+  return null
+}
+
 const walletKey = computed(() => user.value?.wallets?.[0]?.inkey)
 
 // Fuzzy search state and configuration
@@ -82,23 +99,13 @@ const searchOptions: FuzzySearchOptions<Transaction> = {
   matchAllWhenSearchEmpty: true
 }
 
-// Transactions to display: search results (or all), with voided hidden by
-// default and the type filter applied last.
+// Transactions to display: row passes if its bucket's chip is active.
 const transactionsToDisplay = computed(() => {
-  let base = searchResults.value.length > 0 ? searchResults.value : transactions.value
-  if (!showVoided.value) base = base.filter(t => !isVoided(t))
-  if (typeFilter.value === 'income') return base.filter(isIncome)
-  if (typeFilter.value === 'expense') return base.filter(isExpense)
-  return base
-})
-
-// Count of voided entries that are being hidden right now — surfaced in
-// the results-count line so the user knows the toggle has something to
-// reveal.
-const voidedHiddenCount = computed(() => {
-  if (showVoided.value) return 0
   const base = searchResults.value.length > 0 ? searchResults.value : transactions.value
-  return base.filter(isVoided).length
+  return base.filter(t => {
+    const bucket = getBucket(t)
+    return bucket !== null && activeCategories.value.has(bucket)
+  })
 })
 
 // Handle search results
@@ -273,30 +280,21 @@ onMounted(() => {
             </Button>
           </div>
 
-          <!-- Type Filter (All / Income / Expenses) + Show voided toggle -->
+          <!-- Category chips: each chip toggles inclusion of one bucket
+               of rows. Defaults: Income + Expenses on, Voided off. -->
           <div class="flex items-center gap-2 flex-wrap">
             <Filter class="h-4 w-4 text-muted-foreground" />
             <Button
-              v-for="option in typeFilterOptions"
-              :key="option.value"
-              :variant="typeFilter === option.value ? 'default' : 'outline'"
+              v-for="chip in categoryChips"
+              :key="chip.value"
+              :variant="activeCategories.has(chip.value) ? 'default' : 'outline'"
               size="sm"
               class="h-7 md:h-8 px-3 text-xs"
-              @click="typeFilter = option.value"
+              @click="toggleCategory(chip.value)"
               :disabled="isLoading"
             >
-              {{ option.label }}
+              {{ chip.label }}
             </Button>
-            <div class="flex items-center gap-2 ml-auto">
-              <Switch
-                id="show-voided"
-                v-model="showVoided"
-                :disabled="isLoading"
-              />
-              <Label for="show-voided" class="text-xs text-muted-foreground cursor-pointer">
-                Show voided
-              </Label>
-            </div>
           </div>
 
           <!-- Custom Date Range Inputs -->
@@ -352,9 +350,6 @@ onMounted(() => {
         <span v-else>
           {{ transactionsToDisplay.length }} transaction{{ transactionsToDisplay.length === 1 ? '' : 's' }}
         </span>
-        <span v-if="voidedHiddenCount > 0" class="ml-1">
-          ({{ voidedHiddenCount }} voided hidden)
-        </span>
       </div>
 
       <!-- Loading State -->
@@ -369,7 +364,9 @@ onMounted(() => {
       <div v-else-if="transactionsToDisplay.length === 0" class="text-center py-12 px-4">
         <p class="text-muted-foreground">No transactions found</p>
         <p class="text-sm text-muted-foreground mt-2">
-          {{ searchResults.length > 0 ? 'Try a different search term' : 'Try selecting a different time period' }}
+          <template v-if="searchResults.length > 0">Try a different search term</template>
+          <template v-else-if="activeCategories.size === 0">Select a category above to see transactions</template>
+          <template v-else>Try selecting a different time period or toggling more categories</template>
         </p>
       </div>