Fix broken icons: import via webpack file-loader instead of raw paths

The neuron icon and pyr icon were using static src paths that don't
resolve in the build output. Import them as modules so webpack's
file-loader handles the path correctly.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: amyleesterling

src/components/CellLibraryPanel.vue

@@ -10,6 +10,7 @@ import {
   type HelpRequest,
 } from '../store';
 import { isLatestRoots, getLatestRoots } from '../widgets/pcg_service';
+import neuronIcon from '../../static/badges/pyr/neuron-icon-white.png';
 
 const props = defineProps<{ initialTab?: string }>();
 const emit = defineEmits({ hide: null });
@@ -410,7 +411,7 @@ const panelStyle = computed(() => ({
         <!-- Top bar -->
         <div class="nge-cl-topbar" @mousedown="startDrag" :class="{ 'nge-cl-dragging': isDragging }">
           <div class="nge-cl-title">
-            <img src="center-art/../neuron-icon-white.png" class="nge-cl-icon" /> Cell Library
+            <img :src="neuronIcon" class="nge-cl-icon" /> Cell Library
           </div>
           <button class="nge-cl-close" @click="emit('hide')">×</button>
         </div>

src/components/UserProfilePanel.vue

@@ -7,6 +7,7 @@ import {useLoginStore, useUserStatsStore, useUserPreferencesStore, useCellHistor
 import {BADGE_DEFINITIONS, BUILDING_BADGES, EXPLORATION_BADGES, BadgeDefinition, BadgeTrack, statKeyForTrack} from '../widgets/badge_definitions';
 import {BADGE_IMAGE_MAP} from '../widgets/badge_images';
 import {DEMO_USERS, DEMO_COMMUNITY_EDITS_WEEK, DEMO_COMMUNITY_EDITS_MONTH} from '../data/demo-users';
+import pyrIcon from '../../static/badges/pyr/pyr-icon.png';
 
 // ── Stores ────────────────────────────────────────────────────────────────────
 const {sessions} = storeToRefs(useLoginStore());
@@ -318,7 +319,7 @@ const emit = defineEmits({hide: null, 'open-settings': null});
                   title="Click to change flag"
                 >
                   <img v-if="flagImgUrl(prefs.flag || '')" :src="flagImgUrl(prefs.flag)" class="nge-flag-img" />
-                  <img v-else src="center-art/../pyr-icon.png" class="nge-flag-img nge-pyr-icon" />
+                  <img v-else :src="pyrIcon" class="nge-flag-img nge-pyr-icon" />
                 </button>
                 <Transition name="nge-flag-picker">
                   <div v-if="showFlagPicker" class="nge-profile-flag-picker">