storkit: merge 427_story_server_side_text_normalization_for_chat_message_line_breaks

server/src/chat/transport/slack/format.rs

@@ -6,9 +6,13 @@
 /// This function converts common Markdown constructs so messages render
 /// nicely in Slack instead of showing raw Markdown syntax.
 pub fn markdown_to_slack(text: &str) -> String {
+    use crate::chat::util::normalize_line_breaks;
     use regex::Regex;
     use std::sync::LazyLock;
 
+    let normalized = normalize_line_breaks(text);
+    let text = normalized.as_str();
+
     // Regexes are compiled once and reused across calls.
     static RE_FENCED_BLOCK: LazyLock<Regex> =
         LazyLock::new(|| Regex::new(r"(?ms)^```.*?\n(.*?)^```").unwrap());