Chapter v0.3.9

• The administration page is now titled Chapter Player.
• New installations and restored players start with an empty podcast list, so parents explicitly choose every podcast.
• Existing saved podcasts remain preserved during updates.
• Wiring and enclosure documentation now matches the released hardware, including USB-C power, fuse, amplifier, speaker, and control placement guidance.
• Public-release safety notes and repository hygiene have been improved.

See the changelog for release history.