feat(activities): "Hosting" filter chip on the activities feed

Companion to the "My tickets" chip from #71. Where "My tickets"
narrows the feed to events you're attending, "Hosting" narrows it
to events you're organizing — reading `activity.isMine` which
useActivities.tagOwnership() already populates from organizer
pubkey match + own LNbits drafts.

Naming rationale: "My events" would have been ambiguous with
favorited / bookmarked. "Hosting" is short, role-oriented, and
pairs as the natural counterpart to "My tickets" (attending vs.
organizing). Spanish/French translations lean on the verb form
("Organizo" / "J'organise") since those languages don't have a
clean noun equivalent.

- useActivityFilters: onlyHosting flag, toggleHosting action,
  resetFilters clears it, hasActiveFilters lights up.
- applyFilters filters by `a.isMine === true` when the flag is
  on. Composes with category / temporal / "My tickets" via the
  same intersection chain.
- ActivitiesPage: chip rendered alongside "My tickets" with the
  Megaphone icon (lucide). Hidden when logged out.

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

src/i18n/locales/en.ts

@@ -58,6 +58,7 @@ const messages: LocaleMessages = {
       thisWeek: 'This Week',
       thisMonth: 'This Month',
       myTickets: 'My tickets',
+      hosting: 'Hosting',
     },
     categories: {
       concert: 'Concert',

src/i18n/locales/es.ts

@@ -58,6 +58,7 @@ const messages: LocaleMessages = {
       thisWeek: 'Esta semana',
       thisMonth: 'Este mes',
       myTickets: 'Mis boletos',
+      hosting: 'Organizo',
     },
     categories: {
       concert: 'Concierto',

src/i18n/locales/fr.ts

@@ -58,6 +58,7 @@ const messages: LocaleMessages = {
       thisWeek: 'Cette semaine',
       thisMonth: 'Ce mois-ci',
       myTickets: 'Mes billets',
+      hosting: 'J\'organise',
     },
     categories: {
       concert: 'Concert',

src/i18n/types.ts

@@ -59,6 +59,7 @@ export interface LocaleMessages {
       thisWeek: string
       thisMonth: string
       myTickets: string
+      hosting: string
     }
     categories: Record<string, string>
     detail: {

src/modules/activities/composables/useActivityFilters.ts

@@ -22,6 +22,13 @@ export function useActivityFilters() {
    * (this composable stays free of ticket fetching).
    */
   const onlyOwnedTickets = ref(false)
+  /**
+   * When true, the feed is narrowed to activities the current user
+   * is hosting (organizer pubkey matches the signed-in user, or the
+   * row is a local LNbits draft of theirs). Reads `activity.isMine`
+   * which `useActivities.tagOwnership()` populates.
+   */
+  const onlyHosting = ref(false)
 
   const filters = computed<ActivityFilters>(() => ({
     temporal: temporal.value,
@@ -54,6 +61,13 @@ export function useActivityFilters() {
       )
     }
 
+    // Hosting filter — activities the signed-in user organizes.
+    // Read off `activity.isMine` which `useActivities.tagOwnership()`
+    // populates from organizer-pubkey match + LNbits drafts.
+    if (onlyHosting.value) {
+      result = result.filter(a => a.isMine === true)
+    }
+
     return result
   }
 
@@ -89,17 +103,23 @@ export function useActivityFilters() {
     selectedCategories.value = []
     selectedDate.value = undefined
     onlyOwnedTickets.value = false
+    onlyHosting.value = false
   }
 
   function toggleOwnedTickets() {
     onlyOwnedTickets.value = !onlyOwnedTickets.value
   }
 
+  function toggleHosting() {
+    onlyHosting.value = !onlyHosting.value
+  }
+
   const hasActiveFilters = computed(() =>
     temporal.value !== 'all' ||
     selectedCategories.value.length > 0 ||
     selectedDate.value !== undefined ||
-    onlyOwnedTickets.value
+    onlyOwnedTickets.value ||
+    onlyHosting.value
   )
 
   return {
@@ -108,6 +128,7 @@ export function useActivityFilters() {
     selectedCategories,
     selectedDate,
     onlyOwnedTickets,
+    onlyHosting,
     filters,
     hasActiveFilters,
 
@@ -118,6 +139,7 @@ export function useActivityFilters() {
     toggleCategory,
     clearCategories,
     toggleOwnedTickets,
+    toggleHosting,
     resetFilters,
   }
 }

src/modules/activities/views/ActivitiesPage.vue

@@ -8,7 +8,7 @@ import {
   CollapsibleContent,
   CollapsibleTrigger,
 } from '@/components/ui/collapsible'
-import { SlidersHorizontal, ChevronDown, Ticket } from 'lucide-vue-next'
+import { SlidersHorizontal, ChevronDown, Ticket, Megaphone } from 'lucide-vue-next'
 import { useActivities } from '../composables/useActivities'
 import { useAuth } from '@/composables/useAuthService'
 import ActivitySearchOverlay from '../components/ActivitySearchOverlay.vue'
@@ -30,11 +30,13 @@ const {
   hasActiveFilters,
   selectedDate,
   onlyOwnedTickets,
+  onlyHosting,
   selectDate,
   setTemporal,
   toggleCategory,
   clearCategories,
   toggleOwnedTickets,
+  toggleHosting,
   resetFilters,
   subscribe,
 } = useActivities()
@@ -79,10 +81,10 @@ function handleSelectActivity(activity: Activity) {
       <TemporalFilterBar :model-value="temporal" @update:model-value="setTemporal" />
     </div>
 
-    <!-- "My tickets" filter chip — narrows the feed to activities
+    <!-- Role filter chips — narrow the feed to activities the user
-         the user holds at least one paid ticket for. Hidden when
+         has skin in. Hidden when logged out (nothing to filter on).
-         logged out (no tickets to filter on). -->
+         "My tickets" = attending; "Hosting" = organizing. -->
-    <div v-if="isAuthenticated" class="mb-4">
+    <div v-if="isAuthenticated" class="mb-4 flex flex-wrap gap-2">
       <Button
         :variant="onlyOwnedTickets ? 'default' : 'outline'"
         size="sm"
@@ -92,6 +94,15 @@ function handleSelectActivity(activity: Activity) {
         <Ticket class="w-3.5 h-3.5" />
         {{ t('activities.filters.myTickets', 'My tickets') }}
       </Button>
+      <Button
+        :variant="onlyHosting ? 'default' : 'outline'"
+        size="sm"
+        class="gap-1.5"
+        @click="toggleHosting"
+      >
+        <Megaphone class="w-3.5 h-3.5" />
+        {{ t('activities.filters.hosting', 'Hosting') }}
+      </Button>
     </div>
 
     <!-- Category filters (collapsible) -->