Re-translate the Japanese version (#1871)

* Retranslate Japanese docs with GPT-5.4

* Retranslate Japanese code with GPT-5.4

ja/codes/zig/main.zig

@@ -0,0 +1,25 @@
+const std = @import("std");
+
+const iteration = @import("chapter_computational_complexity/iteration.zig");
+const recursion = @import("chapter_computational_complexity/recursion.zig");
+const time_complexity = @import("chapter_computational_complexity/time_complexity.zig");
+const space_complexity = @import("chapter_computational_complexity/space_complexity.zig");
+const worst_best_time_complexity = @import("chapter_computational_complexity/worst_best_time_complexity.zig");
+
+const array = @import("chapter_array_and_linkedlist/array.zig");
+const linked_list = @import("chapter_array_and_linkedlist/linked_list.zig");
+const list = @import("chapter_array_and_linkedlist/list.zig");
+const my_list = @import("chapter_array_and_linkedlist/my_list.zig");
+
+pub fn main() !void {
+    try iteration.run();
+    recursion.run();
+    time_complexity.run();
+    try space_complexity.run();
+    worst_best_time_complexity.run();
+
+    try array.run();
+    linked_list.run();
+    try list.run();
+    try my_list.run();
+}