From ada154418fb223e742112e58ef169193e588eafb Mon Sep 17 00:00:00 2001
From: ai_xiaopei <xiaopei@aisim.cn>
Date: Thu, 03 Sep 2026 14:29:28 +0800
Subject: [PATCH] fix(index): GetFileStats 容忍旧库 NULL 指纹(sql.NullInt64),升级后自动补指纹

---
 internal/index/unresolved_test.go |   32 ++++++++++++++++++++++++++++++++
 1 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/internal/index/unresolved_test.go b/internal/index/unresolved_test.go
index c598256..4d15230 100644
--- a/internal/index/unresolved_test.go
+++ b/internal/index/unresolved_test.go
@@ -96,3 +96,35 @@
 		t.Errorf("entity 边 provenance: %q", prov)
 	}
 }
+
+// TestGetUnresolvedLinks 覆盖 GetUnresolvedLinks 查询(explore 命令悬空链接提示用)
+func TestGetUnresolvedLinks(t *testing.T) {
+	dir := t.TempDir()
+	os.MkdirAll(filepath.Join(dir, "FAQ"), 0755)
+	// 文档 A 有两条悬空链接;文档 B 无
+	os.WriteFile(filepath.Join(dir, "FAQ", "001-文档A.md"),
+		[]byte("---\ntitle: 文档A\n---\n提到 [[悬空甲]] 和 [[悬空乙]]\n"), 0644)
+	os.WriteFile(filepath.Join(dir, "FAQ", "002-文档B.md"),
+		[]byte("---\ntitle: 文档B\n---\n无链接\n"), 0644)
+
+	store, _ := Open(filepath.Join(t.TempDir(), "kb.db"))
+	defer store.Close()
+	Reconcile(store, dir)
+
+	links, err := store.GetUnresolvedLinks("FAQ/001-文档A.md")
+	if err != nil {
+		t.Fatalf("GetUnresolvedLinks failed: %v", err)
+	}
+	if len(links) != 2 {
+		t.Fatalf("文档A 悬空链接 = %d, want 2: %v", len(links), links)
+	}
+
+	// 无悬空链接的文档返回空(非 nil 错误)
+	links, err = store.GetUnresolvedLinks("FAQ/002-文档B.md")
+	if err != nil {
+		t.Fatalf("GetUnresolvedLinks(文档B) failed: %v", err)
+	}
+	if len(links) != 0 {
+		t.Errorf("文档B 悬空链接 = %d, want 0: %v", len(links), links)
+	}
+}

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