READY page: song keys, Waves Tune, live routing and in-ear sends

- SONG KEYS: each song's PCO key against the set's locator, the pad under it and Finished Songs
- W TUNE: the Waves Tune clip starting each song is the PCO key (and sends that key's program)
- ROUTING / IN EARS: read live over AbletonOSC (then handed back to Companion); the hold, and
  auto-fix in its hours, put stems back on the routing template (from 261025 NA Project) and
  raise in-ear sends at -inf to 0 dB

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

settings/ui/app.js

@@ -581,6 +581,10 @@
     tracks: "This weekend's Ableton set exists, has a song group for every Planning Center song, and is the set Live last opened.",
     mix_foh: "Every song is mixed (a song whose tracks are all still at 0 dB is not) and its stems go out to the console, not to Master.",
     lights: "The lighting cue track has a clip under every song.",
+    tune: "The Waves Tune clip that starts each song is the song's Planning Center key, and sends that key's program. Swap the clip by hand (the hold says which and where); a minor song is fine on its relative major.",
+    routing: "Read live from Ableton (AbletonOSC): every stem goes where the routing template says (Keys → Ext. Out 5/6 Keys). Hold to put them back.",
+    ears: "Read live from Ableton: no song stem has its in-ear send (send A) at -inf, as dragged-in songs do. Hold to set them to 0 dB.",
+    keys: "Every song is in the key Planning Center gives it: the set's locator for the song (\"3- JEHOVAH - B\"), the pad clip under it, and a Finished Songs folder (\"JEHOVAH [B]\"). Eb and D# count as the same key.",
     prop: "The ProPresenter playlist for the plan's date has every Planning Center item; MC announcements have a slide each and this week's notes; every person listed for baptisms or dedications has a slide.",
     timecode: "Every song's presentation has a timeline, and Planning Center's LTC note for every song is the timecode the tracks play at that song's start.",
     backgrounds: "Every song has at least one slide with a background.",