Vamooses Companions

ADDED:
- Housing presence reactions: the companion now reacts to being in your OWN
  neighborhood, on your plot, and inside your house -- a greeting when you
  arrive in each tier (a warmer "welcome home" the first time per session,
  lighter on re-entry) plus context-flavored idle chatter while you linger.
  ~650 new lines across all five shipped companions (250 Scurry; 100 each for
  Vamoose, Gazlowe, Patches, Murgle). Own-home only -- stays quiet when
  visiting a neighbor. New "Housing Presence" toggle under Settings > Events >
  Daily Life. Test in-game with /vc test home [enter_house|idle_house|...].
  House level-ups and neighborhood initiatives are unchanged (initiatives
  remain VamoosesEndeavors' domain).
- Random speaker: a "Random speaker" toggle at the top of the companion picker
  in Settings. When on, each quote is spoken by a randomly chosen character
  instead of your selected companion; the named companions dim to show they're
  overridden. Turn it off to return to your chosen companion.

FIXED:
- Frame strata: the companion model preview (in Settings) and the model browser
  now raise above other open windows on click, fixing cases where the 3D model
  rendered behind or through other UI.

CHANGED:
- Murgle's spoken-line translations are shorter so they fit the quote bubble
  without overflowing.