feat: cpp init

[zyl1314]

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[Hoblovski]

我觉得行。

给CI 加上 cxx cpp 吧。

From 7f2e3077bfd5fab2d69e44e280e8dc1b49bdd902 Mon Sep 17 00:00:00 2001
From: Hoblovski <dzy.0424thu@gmail.com>
Date: Tue, 17 Mar 2026 05:27:01 -0700
Subject: [PATCH] test: run cxx and cpp in regression


diff --git a/.github/workflows/regression.yml b/.github/workflows/regression.yml
index 36edd03..d234a2b 100644
--- a/.github/workflows/regression.yml
+++ b/.github/workflows/regression.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     #if: "!contains(github.event.pull_request.title, '[NO-REGRESSION-TEST]')"
     env:
-      LANGS: "go rust python typescript"
+      LANGS: "go rust python typescript cxx cpp"
       # ignore package version for Go e.g. 'a.b/c@506fb8ece467f3a71c29322169bef9b0bc92d554'
       DIFFJSON_IGNORE: >
         ['id']
-- 
2.43.0