feat(ui): theme HUD with Orbitron typography

Game/scripts/hud_instrument.gd

@@ -23,3 +23,11 @@ static func angle_delta_deg(from: float, to: float) -> float:
 
 func _smoothing_weight(delta: float) -> float:
 	return 1.0 - exp(-SMOOTHING * delta)  # frame-rate independent
+
+
+# Procedural draw calls do not automatically consume a Control's theme font;
+# resolve it explicitly so every instrument uses the same packaged typeface
+# as ordinary Labels instead of ThemeDB's debug-looking fallback.
+func hud_font() -> Font:
+	var font := get_theme_default_font()
+	return font if font else ThemeDB.fallback_font