v0.3.2

• Cleaner reflection backgrounds. Added selective background desaturation to the reflection
  finish: the global blue boost that makes the nebula pop no longer floods the sky with blue
  speckle — low-signal pixels fade to neutral black while the nebula keeps its colour. (New
  desaturate_background; defaults bg_desat=0.14, bg_desat_soft=0.14.)
• --version is now correct. It read a hardcoded string that was never bumped (so 0.3.0/0.3.1
  both reported 0.2.0); it now derives from the installed package metadata and can't drift again.