fix: add --all to cargo fmt in script/test and autoformat codebase

cargo fmt without --all fails with "Failed to find targets" in
workspace repos. This was blocking every story's gates. Also ran
cargo fmt --all to fix all existing formatting issues.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/src/chat/lookup.rs

@@ -80,7 +80,10 @@ mod tests {
     fn not_found_returns_none() {
         let tmp = tempfile::TempDir::new().unwrap();
         let result = find_story_by_number(tmp.path(), "999");
-        assert!(result.is_none(), "should return None when story is not found");
+        assert!(
+            result.is_none(),
+            "should return None when story is not found"
+        );
     }
 
     #[test]