render: explicit imports for XCLIP clipping after #2239

#2239 replaced the glob imports in blocks.rs and viewports.rs with explicit
lists; the XCLIP code relied on the globs for `Clip`, `append_clipped_keep`,
`clip` and `Pen`. Import them by name.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

crates/render/src/blocks.rs

@@ -1,7 +1,7 @@
 use super::draw::entity;
 use super::props::{resolve, resolve_common, transparency};
 use super::text_entity::{mtext, place_text_entity};
-use super::{Builder, Color, Ctx, Entity, EntityKind, Ink, Lineweight, Mat3, Vec2};
+use super::{Builder, Clip, Color, Ctx, Entity, EntityKind, Ink, Lineweight, Mat3, Vec2, append_clipped_keep, clip};
 
 pub(crate) fn sub_ctx<'a>(ctx: &Ctx<'a>, e: &Entity, m: Mat3) -> Ctx<'a> {
     let layer = if e.common.layer == "0" { ctx.block_layer.clone() } else { Some(e.common.layer.clone()) };

crates/render/src/viewports.rs

@@ -5,7 +5,7 @@ use super::draw::entity;
 #[cfg(not(target_arch = "wasm32"))]
 use super::pipeline::PARALLEL_CHUNK;
 use super::pipeline::{Options, style_table, top_ctx, with_point_view};
-use super::{Bounds2, Builder, Ctx, Drawing, Entity, EntityKind, Handle, MAX_BLOCK_EXPANSION, Mat3, Space, Vec2, clip, paper, pen, plotstyle};
+use super::{Bounds2, Builder, Ctx, Drawing, Entity, EntityKind, Handle, MAX_BLOCK_EXPANSION, Mat3, Pen, Space, Vec2, clip, paper, pen, plotstyle};
 
 /// Upper bound on viewports drawn per layout (hostile files).
 pub(crate) const MAX_VIEWPORTS: usize = 256;