v0.1.7 hum: local library, podcasts, tag reader

[zblauser]

v0.1.7 - ytcli is now hum

ytcli plays local files now, so the name stopped making sense. Same project, same
repo, new name: hum.

Your stuff keeps working. hum reads the old ytcli/ config and data directories
when the new hum/ ones don't exist — history, playlists, theme, volume, all of
it. Nothing was moved or copied. If you want it in the new locations, move it
yourself; if you don't care, don't.

local library

• hum library dir ~/Music (colon-separate several roots), then Ctrl+L browses
  artists → albums → tracks
• tags are read in-process: ID3v2.3/2.4, Vorbis comments (flac), Ogg/Opus, MP4.
  No taglib, no ffprobe - the only linked C library is still libmpv
• untagged files fall back to the Artist/Album/01 Title.flac layout, and files
  with nothing to go on land under unknown instead of vanishing
• scanning is on demand with a progress readout, any key stops it, and a stopped
  scan is never cached as if it were complete
• rescans reuse cached rows when a file's mtime and size are unchanged, so only
  what actually changed gets re-read
• your folders are never touched. hum sorts what it shows, not what you have

sources, search, queue

• hum ~/Music/album/01.flac plays a file; any http(s):// URL streams
• Ctrl+E switches what Enter searches: both · youtube · library. In library
  scope nothing goes to the network, autocomplete included
• your library feeds the ghost completion, so typing boh completes to an artist
  you actually own
• Ctrl+T now means something for local files too: all · songs · albums · artists
• Ctrl+Q opens the queue - K/J reorder, d remove, s shuffle, a/A
  queue from any list
• playlists hold local and YouTube tracks side by side; files written by older
  versions still load

podcasts

• hum feeds add <url> subscribes to an RSS or Atom feed; Ctrl+F browses your
  shows in the TUI and lists episodes with their length
• hum feeds <name> prints a show's episodes for piping
• the feed parser is deliberately narrow; it scans for the handful of elements a
  podcast feed must have and ignores everything else. No DTDs, no entity
  definitions, no namespaces, no external references, so expansion bombs have
  nothing to expand. Enclosure URLs are http(s)-only before they reach the player

fixes

• search rows showed a duration where the artist belongs. Top results come from a
  card shelf that carries the artist in its header, and the row fell through to
  the wrong run. This shipped in v0.1.6
• the hint bar wasn't truncated, so on a narrow terminal it wrapped, the frame grew
  a row, and the screen scrolled the title away
• a Ctrl+L rescan while browsing could segfault: library rows borrow their text
  from the index, and the rescan freed it while the progress callback was drawing
• changing music_dir kept serving the old library, because the cache didn't
  record which roots built it

other

• piping into head no longer prints a stack trace when the pipe closes
• hum doctor prints paths, settings, library state and whether curl and yt-dlp
  are on PATH (paste it into a bug report)
• new splash on startup; splash=off in the config skips it
• duration column in result rows
• FreeBSD release builds stopped timing out: the duplicate test compile is gone and
  the toolchain is fetched on the host instead of inside the VM

[zblauser]

massive updates including the ability to play local files and RSS feeds