M8.15: Envelope dialogs, Reset with Warp/Mesh, full Envelope Options

Make with Warp and Make with Mesh open dedicated dialogs (style dropdown,
orientation, bend and distortion sliders; rows and columns) with live
preview; while an envelope is selected the menu shows Reset with Warp /
Reset with Mesh instead, which switch the envelope's kind and keep its
content (Maintain Envelope Shape samples the current surface). Envelope
Options is a full dialog prefilled from the selection (Anti-Alias,
Preserve Shape, Fidelity, Distort Appearance, Distort Linear Gradients,
Distort Pattern Fills); with nothing selected it sets the defaults for new
envelopes. object.envelope.info reads the settings. Release returns the
warp or mesh shape as a gradient mesh and keeps opacity, blend mode and
mask; Expand keeps name, knockout, isolation and mask; Object > Expand
expands envelopes.

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

crates/doc/src/node.rs

@@ -272,6 +272,9 @@ pub enum NodeKind {
         /// Edit Contents mode (the content, not the envelope, is edited).
         #[serde(default)]
         editing: bool,
+        /// Envelope Options besides Fidelity.
+        #[serde(default, skip_serializing_if = "crate::skip::is_default")]
+        options: crate::live::EnvelopeOptions,
     },
     /// Gradient mesh.
     Mesh(GradientMesh),