v2.2.0

Four PRs on top of v2.1.0. No breaking change.

Added

• PR #52 (feat(observability)) — script hardening + log
  ergonomics:

  • Shebang is now #!/bin/sh -eu and the script enables
    pipefail immediately after. Catches silent typos in
    variable names (set -u) and a failing command in a
    pipeline (pipefail).
  • ::add-mask:: for INPUT_PASSWORD, INPUT_USER and
    INPUT_SERVER so even future log lines that echo the
    value will be redacted in the rendered log.
  • ::group:: / ::endgroup:: around the four heavy
    log phases (Inputs received, Resolved configuration,
    Upload, final result) so the GitHub Actions UI can
    collapse them.

• PR #53 (chore(devx)) — developer-experience polish:

  • .github/dependabot.yml with weekly scans for both
    docker and github-actions ecosystems. lftp bumps are
    restricted to patches; actions are grouped per major.
  • ASCII flow diagram of init.sh added to the README.
  • Makefile with lint, test, build, run, release
    and clean targets (all no-op if the underlying tool
    is not installed).

• PR #59 (feat:) — error classification and log
  capture:

  • Permanent lftp errors (530 login, 550 permission, 550
    no such file) are detected in the captured output and
    abort the retry loop early, saving minutes of waiting
    on a backoff that would never succeed.
  • Every lftp invocation's combined stdout+stderr is
    written to a timestamped log file at
    ~/.lftp-logs/run-<UTC>.log. The path is exposed as
    the log_file action output (via $GITHUB_OUTPUT)
    so a follow-up step can attach it as a workflow
    artifact, and it is printed in the failure banner.

• PR #60 (feat:) — dry_run input (default false).
  When set to true, the mirror command gets lftp's
  --dry-run flag, the plan is reported without any
  transfer or delete, and the final success banner switches
  to FTP DRY RUN COMPLETED (no files transferred) so a
  casual reader cannot mistake a dry run for a real upload.
  Long-standing TODO in the README.

Changed

• Relicense to AGPL-3.0 (commit f9bfc80). The
  project moves from GPL-3.0 to the GNU Affero General
  Public License v3.0 to add the network use clause
  (section 13 of the AGPL), ensuring the source remains
  available to users interacting with the software over a
  network. No code change; only LICENSE is updated.