fix: Handled mk_dir error.

TODOS.md

@@ -16,8 +16,6 @@
 
 8. **cmd_restore.odin:20-30 & cmd_remove.odin:19-29** — Identical path-resolution block copy-pasted. `is_abs` guard is redundant since `filepath.abs` is a no-op on absolute paths. Extract a helper.
 
-9. **cmd_restore.odin:44** — `os.mkdir_all` error silently discarded. Subsequent write failure will be confusing.
-
 10. **config.odin:178** — `search_paths` silently ignores `os.user_home_dir` error. If home is empty, `~` isn't expanded. Same class of bug as issue 3.
 
 12. Consistently ignore allocator errors

cmd_restore.odin

@@ -42,7 +42,10 @@ cmd_restore :: proc(cmd: ^Command) {
 	}
 
 	dir := filepath.dir(file.Path)
-	os.mkdir_all(dir)
+	if err := os.mkdir_all(dir); err != nil {
+		fmt.wprintf(cmd.err, "failed to create directory: %s\n", err)
+		return
+	}
 
 	write_err := os.write_entire_file(file.Path, file.contents)
 	if write_err != nil {