restore kv-tutorial

.gitlab/workflow/main.yml

kv-tutorial/.editorconfig

kv-tutorial/.gitignore

kv-tutorial/.prettierrc

kv-tutorial/package-lock.json

kv-tutorial/package.json

kv-tutorial/src/index.ts

kv-tutorial/test/index.spec.ts

kv-tutorial/test/tsconfig.json

kv-tutorial/tsconfig.json

kv-tutorial/vitest.config.mts

kv-tutorial/worker-configuration.d.ts

kv-tutorial/wrangler.toml