刷新Gitea CI依赖缓存镜像

预热当前server-rs的SpacetimeDB 2.7.0依赖
为Cargo锁定依赖下载增加整命令级有界重试
更新Runner镜像事实和运维文档

scripts/gitea-ci-job-image.sh

@@ -4,7 +4,7 @@ set -euo pipefail
 
 repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd -P)"
 dockerfile_context_path="deploy/container/gitea-ci-job.Dockerfile"
-image_tag="${GENARRATIVE_GITEA_CI_IMAGE_TAG:-genarrative/gitea-project-ci:20260722.2}"
+image_tag="${GENARRATIVE_GITEA_CI_IMAGE_TAG:-genarrative/gitea-project-ci:20260723.1}"
 runner_container="${GENARRATIVE_GITEA_RUNNER_CONTAINER:-gitea-runner}"
 
 write_build_context_file_list() {