feat(voice): render the pointer reticle beside the voice control

PointerReticle keeps the turn's timers and tool tracking and presents
where the user pointed to the gev-pointer-reticle store, one entry per
reticle; the command dock teleports each to the body with the same
class, aria-hidden, hidden state, target and position. The voice QA
reads the card and reticle after Vue's flush, and the application guide
says leaving out the command dock leaves out the voice control and its
reticle.

src/ui/stores/pointerReticle.js

@@ -0,0 +1,32 @@
+import { defineStore } from 'pinia';
+import { markRaw, shallowRef } from 'vue';
+
+/**
+ * The voice pointer reticles as their view renders them. Each PointerReticle
+ * (src/voice/pointerReticle.js) presents where the user pointed while its
+ * voice turn is live.
+ */
+export const usePointerReticleStore = defineStore('gev-pointer-reticle', () => {
+  /**
+   * `[{owner, visible, left, top, target}]` in client pixels, one per
+   * reticle that has shown, `target` being 'entity' or 'ground'.
+   */
+  const reticles = shallowRef([]);
+
+  /**
+   * @param {object} owner The reticle publishing.
+   * @param {?object} view Its fresh presentation, or null to remove it.
+   */
+  function publish(owner, view) {
+    const index = reticles.value.findIndex((item) => item.owner === owner);
+    const next = reticles.value.slice();
+    if (!view) {
+      if (index < 0) return;
+      next.splice(index, 1);
+    } else if (index < 0) next.push(markRaw({ ...view, owner }));
+    else next[index] = markRaw({ ...view, owner });
+    reticles.value = next;
+  }
+
+  return { reticles, publish };
+});

src/ui/views/CommandDockView.vue

@@ -5,6 +5,7 @@ import { vClassToggle } from '../rail/classToggle.js';
 import { useDisplayStore } from '../stores/display.js';
 import { computed } from 'vue';
 import { useLocationStore } from '../stores/location.js';
+import { usePointerReticleStore } from '../stores/pointerReticle.js';
 import { useVoiceStore } from '../stores/voice.js';
 import PhoneTabBar from './panels/PhoneTabBar.vue';
 import VoiceControl from './panels/VoiceControl.vue';
@@ -32,6 +33,9 @@ const dockOrder = computed(() => {
       : ['control', 'location'];
 });
 
+// Where the user pointed while a voice turn is live (PointerReticle).
+const { reticles } = storeToRefs(usePointerReticleStore());
+
 function selectMapSource(chip) {
   if (!chip.available) return;
   void mapSourceControls.value?.select(chip.id).catch(() => {});
@@ -136,5 +140,8 @@ function selectMapSource(chip) {
   </div>
   </template>
   <PhoneTabBar />
+  <Teleport to="body">
+    <div v-for="reticle in reticles" :key="reticle.owner.key" class="gev-pointer-reticle" aria-hidden="true" :hidden="!reticle.visible" :data-target="reticle.target" :style="{ left: `${reticle.left}px`, top: `${reticle.top}px` }"></div>
+  </Teleport>
   </div>
 </template>