various fixes

app-expo/src/app/(tabs)/memoir.tsx

@@ -24,7 +24,10 @@ import { Skeleton } from '@/components/ui/skeleton';
 import { Text } from '@/components/ui/text';
 import { ScreenGutter } from '@/constants/layout';
 import { useCreateConversation } from '@/features/conversation/hooks';
-import { buildFrameworkChapterPlaceholders } from '@/features/memoir/framework-chapter-keys';
+import {
+  buildFrameworkChapterPlaceholders,
+  mergeFrameworkChaptersWithFetched,
+} from '@/features/memoir/framework-chapter-keys';
 import { useChapters, useCheckCoverGeneration } from '@/features/memoir/hooks';
 import type { ChapterViewModel } from '@/features/memoir/types';
 
@@ -263,6 +266,11 @@ export default function MemoirScreen() {
     [t],
   );
 
+  const displayChapters = useMemo(
+    () => mergeFrameworkChaptersWithFetched(frameworkPlaceholders, chapters),
+    [frameworkPlaceholders, chapters],
+  );
+
   useEffect(() => {
     if (didRunInitialCoverCheckRef.current) return;
     didRunInitialCoverCheckRef.current = true;
@@ -318,19 +326,8 @@ export default function MemoirScreen() {
             </>
           ) : isError ? (
             <MemoirLoadError onRetry={() => void refetch()} />
-          ) : chapters.length === 0 ? (
-            frameworkPlaceholders.map((item) => (
-              <ChapterCard
-                key={item.id}
-                item={item}
-                variant="drafting"
-                t={t as (key: string) => string}
-                onReadPress={() => handleReadChapter(item.id)}
-                onContinuePress={handleStartChapter}
-              />
-            ))
           ) : (
-            chapters.map((item) => (
+            displayChapters.map((item) => (
               <ChapterCard
                 key={item.id}
                 item={item}

app-expo/src/features/memoir/framework-chapter-keys.ts

@@ -35,3 +35,17 @@ export function buildFrameworkChapterPlaceholders(
     wordCount: 0,
   }));
 }
+
+/**
+ * 列表页始终展示 8 个框架槽位：已有章节用接口数据，其余槽位仍用框架占位（与「零章节」时一致）。
+ */
+export function mergeFrameworkChaptersWithFetched(
+  placeholders: ChapterViewModel[],
+  fetched: ChapterViewModel[],
+): ChapterViewModel[] {
+  const byOrder = new Map<number, ChapterViewModel>();
+  for (const vm of fetched) {
+    byOrder.set(vm.orderIndex, vm);
+  }
+  return placeholders.map((p) => byOrder.get(p.orderIndex) ?? p);
+}