Finishing agent merge

server/src/io/story_metadata.rs

@@ -19,6 +19,15 @@ pub enum StoryMetaError {
     InvalidFrontMatter(String),
 }
 
+impl std::fmt::Display for StoryMetaError {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            StoryMetaError::MissingFrontMatter => write!(f, "Missing front matter"),
+            StoryMetaError::InvalidFrontMatter(msg) => write!(f, "Invalid front matter: {msg}"),
+        }
+    }
+}
+
 #[derive(Debug, Deserialize)]
 struct FrontMatter {
     name: Option<String>,