Format the tree the way the gate asks for it

`cargo fmt --check` is a required step and had drifted across 45 files. Most of
it arrived this week: several operations were written in parallel worktrees and
merged by hand, and a hand-merge resolves conflicts without ever running the
formatter over the result.

No behaviour changes — this is `cargo fmt --all` and nothing else, kept as its
own commit so the next reader can skip it wholesale rather than search it for
one that matters.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

core/dr-pipeline/src/ops/distortion.rs

@@ -26,7 +26,9 @@
 //! profile is a "make the horizon straight" task, which one term does well.
 //! The full triple is reachable by loading a profile.
 
-use crate::descriptor::{Attribute, LocalizedKey, OpDescriptor, OpId, ParamDescriptor, ParamId, Scale, Unit};
+use crate::descriptor::{
+    Attribute, LocalizedKey, OpDescriptor, OpId, ParamDescriptor, ParamId, Scale, Unit,
+};
 use crate::lens::Warp;
 use crate::operation::{Helper, Uniform};