fix(journal): rephrase captures-button title to avoid Vue template escape

Vue's template parser doesn't handle JS-style \\' escaping inside
double-quoted attribute values, so `today\\'s` produced a compiler
crash during the production frontend build. Rephrased to avoid the
apostrophe entirely. No functional change.

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

frontend/src/views/JournalView.vue

@@ -373,7 +373,7 @@ onMounted(async () => {
               class="captures-trigger-btn"
               :class="{ spinning: curatorRunning }"
               :disabled="curatorRunning || !dayConvId || !isToday"
-              :title="isToday ? 'Run curator on this conversation' : 'Curator only runs on today\\'s conversation'"
+              :title="isToday ? 'Run curator on this conversation' : 'Curator only runs on the current day'"
               @click="triggerCurator"
             >
               <Sparkles :size="14" />