fix(tags): return focus to the tag input after reject/un-reject too

Accept already re-focused the tag input (so you keep typing without re-clicking);
reject (✗) and un-reject (↶) went straight to the store and skipped it. Route
them through onDismiss/onUndismiss which emit 'dismissed', and wire that to
focusTagInput in TagPanel — same return-to-input behaviour as accept. TagPanel is
shared, so this covers both the image modal and the Explore workspace. The
field's mobile-focus guard is preserved.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ttrj5P7upUTueSfoJcxEqa

frontend/src/components/modal/SuggestionsPanel.vue

@@ -21,14 +21,14 @@
         v-show="store.byCategory[cat] && store.byCategory[cat].length"
         :label="labelFor(cat)" :items="store.byCategory[cat] || []"
         @accept="onAccept" @alias="onAlias" @remove-alias="onRemoveAlias"
-        @dismiss="store.dismiss" @undismiss="store.undismiss"
+        @dismiss="onDismiss" @undismiss="onUndismiss"
       />
       <SuggestionsCategoryGroup
         v-if="store.byCategory.general && store.byCategory.general.length"
         label="General" :items="store.byCategory.general"
         collapsible :default-open="true"
         @accept="onAccept" @alias="onAlias" @remove-alias="onRemoveAlias"
-        @dismiss="store.dismiss" @undismiss="store.undismiss"
+        @dismiss="onDismiss" @undismiss="onUndismiss"
       />
     </div>
 
@@ -57,9 +57,15 @@ const props = defineProps({
   // so the same panel refreshes the right surface. See TagPanel.
   host: { type: Object, default: null },
 })
-// 'accepted' lets the parent return focus to the tag input after a suggestion is
-// applied (operator-asked 2026-06-08).
-const emit = defineEmits(['accepted'])
+// 'accepted'/'dismissed' let the parent return focus to the tag input after a
+// suggestion is accepted OR rejected, so the operator keeps the keyboard flow on
+// the input without re-clicking (operator-asked 2026-06-08, 2026-06-30).
+const emit = defineEmits(['accepted', 'dismissed'])
+
+// Reject (✗) / un-reject (↶): apply the store change, then signal the parent to
+// re-focus the tag input — same return-to-input behaviour as accept.
+function onDismiss (s) { store.dismiss(s); emit('dismissed') }
+function onUndismiss (s) { store.undismiss(s); emit('dismissed') }
 const store = useSuggestionsStore()
 const modalStore = useModalStore()
 const host = props.host || modalStore

frontend/src/components/modal/TagPanel.vue

@@ -28,6 +28,7 @@
       :image-id="host.currentImageId"
       :host="host"
       @accepted="focusTagInput"
+      @dismissed="focusTagInput"
     />
 
     <!-- @after-leave: when either dialog finishes closing (apply OR cancel),