Trouble Makers v0.8.0

What's fixed

• 2-11 Migen Brawl! no longer leaves persistent actor and effect trails in
  the extra widescreen area or the narrow gutters exposed when the original
  side borders are removed.
• 3-3 Missile Surf! no longer leaves persistent scenery, actor, or effect
  trails in widescreen.
• 3-3 Missile Surf! now presents its rapidly replaced player and NPC
  missile exhaust and explosion sprites without the flickering duplicate
  copies produced by high-refresh temporal interpolation. The player's saved
  frame-rate setting is preserved and resumes automatically after the stage.

Validation

• Captured and inspected Migen Brawl! and Missile Surf! in both widescreen and
  original 4:3 presentation.
• Re-tested 2-2 Vertigo! and 2-10 Seasick Climb in original 4:3 at
  180 Hz; both retain their authored viewport and high-refresh interpolation.
• Verified that Missile Surf alone uses the scene-native compatibility path;
  Migen Brawl!, Vertigo!, Seasick Climb, and all other stages retain the
  selected presentation rate.
• Rebuilt the game and passed all telemetry, controls, and session-log tests.

Full changelog: v0.7.1...v0.8.0