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Switch the act_runners from :host execution to docker:// images backed by a rootless podman socket under the gitea-runner user, so each job runs in its own ephemeral container with per-job Go caches. This eliminates the cross-repo GOMODCACHE/go-build poisoning that forced the debyl runner to capacity:1. - deps.yml: enable the rootless --user podman.socket, ensure subuid/subgid, register gitea_runner_uid; drop the rootful system socket override, podman-docker and host golang - images.yml + Containerfile.ci/.espidf: build localhost/gitea-ci and localhost/gitea-ci-espidf into the runner's rootless image store - config.yaml.j2: docker:// labels (per-runner overridable), docker_host -> rootless socket, force_pull false - act_runner.service.j2: XDG_RUNTIME_DIR + DOCKER_HOST -> user socket - defaults: uniform capacity:4 (drop the debyl capacity:1 workaround); esp_idf_version now tags the espressif/idf-based image - main.yml: import images.yml, drop the host esp-idf install (firmware jobs use the espressif/idf job container instead) Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>