Kernel: revolved faces turned away from the angle wrap (booleans with revolved bodies work), cuts that leave pieces make separate bodies, trivial booleans (clear of / inside) by sampling, body mirrors with join; recipes: pattern source names, thread, holes at sketch points, mirror of bodies

Oracle: 43/66.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/doc/src/document.rs

@@ -215,6 +215,12 @@ pub enum FeatureKind {
     Mirror {
         features: Vec<String>,
         plane: PlaneRef,
+        /// Mirror these bodies instead of replaying features.
+        #[serde(default, skip_serializing_if = "Vec::is_empty")]
+        bodies: Vec<String>,
+        /// Join each mirrored body with its original.
+        #[serde(default, skip_serializing_if = "std::ops::Not::not")]
+        combine: bool,
     },
     /// A drilled hole (simple, counterbore or countersink) at a point, into the material.
     Hole {