R3.1: real paths without \?\ on Windows (dunce); old recent lists read plain

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

apps/ely-mark/src/side.rs

@@ -111,7 +111,7 @@ impl Side {
         // Open files by real path, as the folder lists them.
         let reals: Vec<(u64, PathBuf)> = open
             .iter()
-            .filter_map(|(id, path, _)| Some((*id, std::fs::canonicalize(path).ok()?)))
+            .filter_map(|(id, path, _)| Some((*id, dunce::canonicalize(path).ok()?)))
             .collect();
         let sources: Vec<(Option<u64>, PathBuf)> = match (self.wide, &desk.folder) {
             (true, Some(folder)) => folder