chore(copyright): add copyright headers to all source files

tree/find_files.rs

@@ -1,3 +1,5 @@
+//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
+
 use crate::bare::GitBare;
 use crate::error::GitResult;
 use crate::paginate;

tree/get_file_metadata.rs

@@ -1,3 +1,5 @@
+//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
+
 use gix::object::tree::EntryKind;
 
 use crate::bare::GitBare;

tree/get_tree.rs

@@ -1,3 +1,5 @@
+//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
+
 use crate::bare::GitBare;
 use crate::error::{GitError, GitResult};
 use crate::pb::{GetTreeRequest, ListTreeRequest, Tree};

tree/list_tree.rs

@@ -1,3 +1,5 @@
+//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
+
 use gix::object::tree::EntryKind;
 
 use crate::bare::GitBare;

tree/mod.rs

@@ -1,3 +1,5 @@
+//! Copyright (c) 2022-2026 GitDataAi All rights reserved.
+
 pub mod find_files;
 pub mod get_file_metadata;
 pub mod get_tree;