Add branch creation and file history search

Implement the ability to create new local branches directly from the application's UI. This includes a new backend command to handle branch creation with validation and a frontend form in the branch panel.

Additionally, extend the global search dialog to include a "Files" tab. Users can now search for files by name or path within the repository. Selecting a file in the search results displays its full commit history, with options to diff the file at a specific commit or restore it to that version.

src-tauri/src/main.rs

@@ -4,11 +4,11 @@ mod git;
 
 use git::{
     cancel_code_search, checkout_branch, commit, compare_commits, compare_file_to_head,
-    compare_file_to_parent, cred_delete, cred_load, cred_save, diff_file_against_working_tree,
-    get_remote_url, get_status, list_branches, list_commits, list_file_history,
-    list_repository_files, merge_branch, open_repository, pull, push, read_conflict,
-    resolve_conflict, resolve_conflict_side, restore_file_from_commit, restore_files,
-    restore_to_commit, search_code_introductions, stage_files, unstage_files,
+    compare_file_to_parent, create_branch, cred_delete, cred_load, cred_save,
+    diff_file_against_working_tree, get_remote_url, get_status, list_branches, list_commits,
+    list_file_history, list_repository_files, merge_branch, open_repository, pull, push,
+    read_conflict, resolve_conflict, resolve_conflict_side, restore_file_from_commit,
+    restore_files, restore_to_commit, search_code_introductions, stage_files, unstage_files,
     SearchCancellationState,
 };
 
@@ -22,6 +22,7 @@ fn main() {
             get_status,
             list_branches,
             checkout_branch,
+            create_branch,
             stage_files,
             unstage_files,
             restore_files,