fix/various fixes

api/tests/test_asset_resolver.py

@@ -1,6 +1,7 @@
 """asset_resolver：旧占位符清理与 asset:// 解析。"""
 
 import unittest
+from types import SimpleNamespace
 
 from app.features.memoir.asset_resolver import (
     collect_asset_ids_for_chapter,
@@ -9,7 +10,7 @@ from app.features.memoir.asset_resolver import (
     split_markdown_by_asset_refs,
     strip_legacy_image_placeholders,
 )
-from app.features.memoir.models import Chapter, ChapterSection
+from app.features.memoir.models import Chapter
 
 
 class AssetResolverTest(unittest.TestCase):
@@ -49,16 +50,24 @@ class AssetResolverTest(unittest.TestCase):
             canonical_markdown="![x](asset://a1)",
             cover_asset_id="cov1",
         )
-        ch.sections = [
-            ChapterSection(
-                id="s1",
-                chapter_id="c1",
-                order_index=0,
-                content="![y](asset://a2)",
-            )
-        ]
         ids = collect_asset_ids_for_chapter(ch)
-        self.assertEqual(ids, {"a1", "a2", "cov1"})
+        self.assertEqual(ids, {"a1", "cov1"})
+
+    def test_collect_asset_ids_includes_linked_story_markdown(self):
+        ch = SimpleNamespace(
+            canonical_markdown="",
+            sections=[],
+            cover_asset_id=None,
+            story_links=[
+                SimpleNamespace(
+                    story=SimpleNamespace(
+                        canonical_markdown="![主图](asset://from-story-1)"
+                    )
+                )
+            ],
+        )
+        ids = collect_asset_ids_for_chapter(ch)
+        self.assertEqual(ids, {"from-story-1"})
 
 
 if __name__ == "__main__":