isokit: project layer, Studio GUI, MCP server, viewer, CLI, demo project and docs

crates/isokit-core/src/proj.rs

@@ -18,7 +18,9 @@ pub struct Proj {
 
 impl Proj {
     pub fn new(rot: i64) -> Self {
-        Proj { rot: rot.rem_euclid(4) as u8 }
+        Proj {
+            rot: rot.rem_euclid(4) as u8,
+        }
     }
 
     /// World plan point to view coordinates.
@@ -147,7 +149,10 @@ mod tests {
             let p = Proj::new(rot);
             let s = p.s(12.5, -3.25, 2.0);
             let w = p.unproject(s[0], s[1], 2.0);
-            assert!((w[0] - 12.5).abs() < 1e-9 && (w[1] + 3.25).abs() < 1e-9, "rot {rot}: {w:?}");
+            assert!(
+                (w[0] - 12.5).abs() < 1e-9 && (w[1] + 3.25).abs() < 1e-9,
+                "rot {rot}: {w:?}"
+            );
         }
     }