Sakurasan f3af42a65f chore: upgrade Go version to 1.26 ...

- backend/go.mod: go 1.26
- deploy/docker/Dockerfile: golang:1.26-alpine
- deploy/docker/Dockerfile.cn: golang:1.26-alpine

2026-08-30 15:29:02 +08:00

..

docker

chore: upgrade Go version to 1.26

2026-08-30 15:29:02 +08:00