Add dns_czechia DNS API plugin

[CZECHIA-COM]

This PR adds a DNS API plugin for CZECHIA.COM / RegZone (ZONER a.s.).

• Supports ACME DNS-01 TXT record management (adds/removes _acme-challenge TXT records)
• Uses the official REST API (Swagger): https://api.czechia.com/swagger/index.html
• Saves credentials to account.conf for non-interactive renewals (per DNS-API-Dev-Guide)
• IP whitelisting is not required for DNS TXT changes used for SSL automation (per official REST API terms); other API operations may still require IP whitelisting:
  • https://www.czechia.com/podminky-rest-api
  • https://www.regzone.info/rest-api-terms

Configuration:

• CZECHIA_Token
• CZECHIA_Zones (comma-separated zone list, longest-suffix match)

Tested with:

• acme.sh v3.x
• Zones: zoner-test.eu, multiple other domains

[github-actions]

Welcome
READ ME !!!!!
Read me !!!!!!
First thing: don't send PR to the master branch, please send to the dev branch instead.
Please read the DNS API Dev Guide.
You MUST pass the DNS-API-Test.
Then reply on this message, otherwise, your code will not be reviewed or merged.
Please also make sure to add/update the usage here: https://github.com/acmesh-official/acme.sh/wiki/dnsapi2
注意: 必须通过了 DNS-API-Test 才会被 review. 无论是修改, 还是新加的 dns api, 都必须确保通过这个测试.

[CZECHIA-COM]

Hello guys,
The GitHub Actions workflow is waiting for maintainer approval to run
(PR #6764).
Could someone please approve the workflow so the remaining tests can run?
Thanks! Jindra

[neilpang]

it should run in your repo: https://github.com/CZECHIA-COM/acme.sh/actions

not here.

[CZECHIA-COM]

Hi Neil,
I ran the CI in my fork as suggested and all workflows are now green.

Full run: https://github.com/CZECHIA-COM/acme.sh/actions/runs/21860110117

Thanks! JZ

[neilpang]

https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide
https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide
https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide
https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide
https://github.com/acmesh-official/acme.sh/wiki/DNS-API-Dev-Guide

[CZECHIA-COM]

Welcome READ ME !!!!! Read me !!!!!! First thing: don't send PR to the master branch, please send to the dev branch instead. Please read the DNS API Dev Guide. You MUST pass the DNS-API-Test. Then reply on this message, otherwise, your code will not be reviewed or merged. Please also make sure to add/update the usage here: https://github.com/acmesh-official/acme.sh/wiki/dnsapi2 注意: 必须通过了 DNS-API-Test 才会被 review. 无论是修改, 还是新加的 dns api, 都必须确保通过这个测试.

DNS-API-Test passed in my fork (per maintainer suggestion).
Workflow run: https://github.com/CZECHIA-COM/acme.sh/actions/runs/21860110117

Wiki dnsapi2 updated with dns_czechia usage.

[neilpang]