fix local folder resource lifecycle

rust/crates/mnote-web/src/routes/local_markdown_parser.rs

@@ -79,61 +79,17 @@ struct MarkdownInlineStyles {
 }
 
 pub fn parse_markdown_page(markdown: &str, file_name: &str) -> ParsedLocalMarkdownPage {
-    let (frontmatter, body) = split_frontmatter(markdown);
+    let (_frontmatter, body) = split_frontmatter(markdown);
     let body_owned = body.to_string();
-    // 标题优先级：frontmatter title > 正文第一条 H1 > 文件名。
-    let title = parse_frontmatter_title(frontmatter.as_deref())
-        .or_else(|| find_first_h1(&body_owned))
-        .unwrap_or_else(|| file_stem_title(file_name));
+    // 本地 Markdown 的树标题和页头标题统一来自文件名；
+    // frontmatter title 与正文 H1 都保留为正文/元数据内容，不作为资源标题真相。
+    let title = file_stem_title(file_name);
     ParsedLocalMarkdownPage {
         title,
         body: body_owned,
     }
 }
 
-/// 从 frontmatter 中提取简单 `title:` 字段。
-fn parse_frontmatter_title(frontmatter: Option<&str>) -> Option<String> {
-    let text = frontmatter?;
-    for line in text.lines() {
-        let trimmed = line.trim();
-        if let Some(value) = trimmed.strip_prefix("title:") {
-            let raw = value.trim();
-            if raw.is_empty() {
-                continue;
-            }
-            let unquoted = if (raw.starts_with('"') && raw.ends_with('"'))
-                || (raw.starts_with('\'') && raw.ends_with('\''))
-            {
-                &raw[1..raw.len() - 1]
-            } else {
-                raw
-            };
-            let title = unquoted.trim().to_string();
-            if !title.is_empty() {
-                return Some(title);
-            }
-        }
-    }
-    None
-}
-
-/// 通过 AST 找正文第一条 H1，避免把代码块里的 `# ...` 误判为标题。
-fn find_first_h1(body: &str) -> Option<String> {
-    let arena = Arena::new();
-    let root = parse_document(&arena, body, &markdown_options());
-    for node in root.descendants() {
-        let value = node.data.borrow();
-        if let NodeValue::Heading(heading) = &value.value {
-            if heading.level != 1 {
-                continue;
-            }
-            let title = collect_plain_text(node).trim().to_string();
-            return (!title.is_empty()).then_some(title);
-        }
-    }
-    None
-}
-
 pub fn markdown_to_blocks(markdown: &str) -> Value {
     markdown_to_blocks_with_attachment_paths(markdown, &BTreeSet::new())
 }
@@ -920,65 +876,35 @@ mod tests {
         assert!(!d2_inline.is_empty(), "非空数据单元格不应为空");
     }
 
-    // 标题优先级：frontmatter title > H1 > 文件名。
+    // 本地 Markdown 标题统一来自文件名，frontmatter title 和 H1 都只保留为正文/元数据。
 
     #[test]
-    fn parse_markdown_title_uses_frontmatter_title() {
+    fn parse_markdown_title_uses_filename_over_frontmatter_and_h1() {
         let parsed = parse_markdown_page(
             "---\ntitle: Frontmatter Title\n---\n# H1 Heading\nbody\n",
-            "file.md",
+            "File Name.md",
         );
-        assert_eq!(parsed.title, "Frontmatter Title");
+        assert_eq!(parsed.title, "File Name");
     }
 
     #[test]
-    fn parse_markdown_title_uses_first_h1_when_no_frontmatter_title() {
-        let parsed = parse_markdown_page("# H1 Title\nbody\n## Not H1\n", "file.md");
-        assert_eq!(parsed.title, "H1 Title");
+    fn parse_markdown_title_uses_filename_when_h1_exists() {
+        let parsed = parse_markdown_page("# H1 Title\nbody\n## Not H1\n", "File Name.md");
+        assert_eq!(parsed.title, "File Name");
     }
 
     #[test]
-    fn parse_markdown_title_falls_back_to_filename() {
+    fn parse_markdown_title_uses_filename_when_body_has_no_h1() {
         let parsed = parse_markdown_page("plain text\nmore text\n", "My File.md");
         assert_eq!(parsed.title, "My File");
     }
 
     #[test]
-    fn parse_markdown_title_prefers_frontmatter_over_h1() {
-        let parsed = parse_markdown_page("---\ntitle: FM Title\n---\n# H1 here\n", "file.md");
-        assert_eq!(parsed.title, "FM Title");
-    }
-
-    #[test]
-    fn parse_markdown_title_handles_quoted_double() {
-        let parsed = parse_markdown_page("---\ntitle: \"Quoted Double\"\n---\nbody\n", "file.md");
-        assert_eq!(parsed.title, "Quoted Double");
-    }
-
-    #[test]
-    fn parse_markdown_title_handles_quoted_single() {
-        let parsed = parse_markdown_page("---\ntitle: 'Single Quoted'\n---\nbody\n", "file.md");
-        assert_eq!(parsed.title, "Single Quoted");
-    }
-
-    #[test]
-    fn parse_markdown_title_uses_h1_when_frontmatter_has_no_title() {
-        let parsed = parse_markdown_page("---\nother: value\n---\n# From H1\n", "file.md");
-        assert_eq!(parsed.title, "From H1");
-    }
-
-    #[test]
-    fn parse_markdown_title_uses_filename_when_body_has_no_h1() {
+    fn parse_markdown_title_ignores_frontmatter_without_title() {
         let parsed = parse_markdown_page("---\ntags: foo\n---\nplain text\n", "NoH1.md");
         assert_eq!(parsed.title, "NoH1");
     }
 
-    #[test]
-    fn parse_markdown_title_handles_atx_closing_markers() {
-        let parsed = parse_markdown_page("# Heading With Closing #\n", "file.md");
-        assert_eq!(parsed.title, "Heading With Closing");
-    }
-
     #[test]
     fn parse_markdown_title_ignores_hash_inside_code_block() {
         let parsed = parse_markdown_page("```md\n# Not A Title\n```\nplain text\n", "Fallback.md");