videobook 0.2.0

Added

• videobook config lists where every provider key comes from, with secret
  values masked; config get, config set and config unset edit the
  data-home .env atomically.
• 1Password support: op:// references in the environment or .env resolve
  through the 1Password CLI when a server starts, and
  videobook setup 1password --op-vault <vault> reads every key from a vault
  whose items are named after the keys. videobook doctor reports the setup
  and which keys 1Password supplied.
• VIDEOBOOK_YTDLP_PATH selects the yt-dlp binary.
• list_jobs accepts job_keys, the job_id strings other tools return.

Changed

• ffprobe now comes from @ffprobe-installer/ffprobe, which installs one
  native build for the current platform instead of ffprobe-static's builds
  for every platform. Apple Silicon and Linux arm64 get a bundled ffprobe, and
  the install is about 300 MB smaller. When npm skips the package's chmod
  script, videobook marks the binary executable itself.
• The npm page no longer links to the private source repository, which
  anonymous visitors cannot open; its homepage is the npm package page.
• The README states that Windows is not supported yet, and why, instead of
  calling it untested.

Fixed

• Downloading videos from URLs works when npm blocked the yt-dlp download:
  videobook falls back to yt-dlp on PATH, passes yt-dlp the resolved
  ffmpeg so format merges work, and fails with install instructions when no
  yt-dlp exists. videobook doctor shows which yt-dlp is used.
• videobook run waits for queued jobs on an already running server too,
  instead of returning while the job runs, and reports how the job ended.