fix: use pr-index based comment numbering in markdown

src/render/markdown.rs

@@ -22,9 +22,10 @@ fn render_body(body: &str) -> String {
     format!("{fence}md\n{body}\n{fence}\n")
 }
 
-fn render_thread(thread_index: usize, thread: &CommentThread) -> String {
+fn render_thread(pr_index: i64, comment_seq: usize, thread: &CommentThread) -> String {
     let mut out = String::new();
-    out.push_str(&format!("### Comment {}.1\n", thread_index));
+    let comment_number = format!("{pr_index}.{comment_seq}");
+    out.push_str(&format!("### Comment {comment_number}\n"));
     if let Some(file_path) = &thread.file_path {
         if let Some(line) = thread.line {
             out.push_str(&format!("{file_path}:{line}\n"));
@@ -36,7 +37,7 @@ fn render_thread(thread_index: usize, thread: &CommentThread) -> String {
     out.push_str(&render_body(&thread.root_comment.body));
 
     for (reply_index, reply) in thread.replies.iter().enumerate() {
-        let reply_number = format!("{thread_index}.1.{}", reply_index + 1);
+        let reply_number = format!("{comment_number}.{}", reply_index + 1);
         out.push_str(&format!("\n### Reply {reply_number}\n"));
         out.push_str(&format!("{}:\n", reply.user));
         out.push_str(&render_body(&reply.body));
@@ -101,7 +102,7 @@ pub fn render_markdown(doc: &PrReviewDocument) -> String {
     }
 
     for (thread_index, thread) in doc.threads.iter().enumerate() {
-        out.push_str(&render_thread(thread_index + 1, thread));
+        out.push_str(&render_thread(doc.meta.pr_index, thread_index + 1, thread));
         out.push('\n');
     }