Soul F4: the architecture configuration list, the Spotiverse restore steps and
.env.example still taught plaintext secret variables. The architecture list now
names only what src/config.ts reads, plain settings apart from secret files,
and drops the names nothing reads (GC_ACCESS_SESSION_SECRET, GC_ACCESS_ENABLED,
GC_ACCESS_INTERNAL_URL, the Discord bot token, the Patreon campaign id and
two TTLs). .env.example comments out the _FILE lines, because an empty
NAME_FILE= is refused at startup.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>