fix: satisfy the production type check for the market chart and home banner

Co-authored-by: Cursor <cursoragent@cursor.com>

src/components/market/MarketChart.vue

@@ -101,7 +101,7 @@ const chartOptions = computed(() => {
     },
     y: {
       display: true,
-      position: 'right',
+      position: 'right' as const,
       min: domain.min,
       max: domain.max,
       grid: { display: false },

src/pages/HomePage.vue

@@ -36,7 +36,9 @@ const nextMissionLines = computed(() => {
   let bestDiff = Number.POSITIVE_INFINITY
   let used = 0
   for (let index = 0; index < words.length - 1; index += 1) {
-    used += words[index].length + (index > 0 ? 1 : 0)
+    const word = words[index]
+    if (!word) continue
+    used += word.length + (index > 0 ? 1 : 0)
     const diff = Math.abs(used - total / 2)
     if (diff < bestDiff) {
       bestDiff = diff