refactor(build): reformat code and add tonic health dependency

- Reformatted build script with proper indentation and line breaks
- Added tonic-health dependency to Cargo.toml and updated lock file
- Improved error handling in disk cache with concurrent deletion checks
- Refactored conditional chains using && and let expressions
- Reformatted struct initialization and function parameter lists
- Added proper spacing and alignment in language stats processing
- Improved assertion formatting in test cases
- Reorganized import statements and code layout in multiple files
- Updated metrics functions with better parameter handling and formatting

actor/snapshot.rs

@@ -79,11 +79,14 @@ impl RaftSnapshot {
             let last_commit = read_string(data, &mut offset)?;
             let read_only = data.get(offset).copied().unwrap_or(0) == 1;
             offset += 1;
-            repos.insert(path, RepoEntry {
-                role,
-                last_commit,
-                read_only,
-            });
+            repos.insert(
+                path,
+                RepoEntry {
+                    role,
+                    last_commit,
+                    read_only,
+                },
+            );
         }
 
         Some(Self {