Report accepted Boolean retries on features and fuzz runs (#249)

Co-authored-by: bherbruck <brennen.herbruck@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

crates/engine/src/tests/boolean_diagnostics.rs

@@ -0,0 +1,52 @@
+use super::*;
+use solvecraft_kernel::BooleanStrategy;
+
+#[test]
+fn boolean_retry_warning_and_details_survive_cache_undo_and_reopen() {
+    let slope = 1f64.to_radians().tan();
+    let mut session = Session::default();
+    run(&mut session, "sketch.create", json!({"plane":"XZ","name":"Floor section"}));
+    run(&mut session, "sketch.line", json!({"points":[[0,0],[100,0],[100,-10.-slope*100.],[0,-10.]],"closed":true}));
+    run(&mut session, "sketch.finish", json!({}));
+    run(&mut session, "solid.extrude", json!({"sketch":"Floor section","distance":80,"body_name":"Floor"}));
+    run(&mut session, "solid.cylinder", json!({"base":[50,40,-5],"radius":10,"height":30,"operation":"cut"}));
+    run(&mut session, "sketch.create", json!({"plane":"XY","name":"Ring section"}));
+    run(&mut session, "sketch.circle.center", json!({"center":[50,40],"radius":20}));
+    run(&mut session, "sketch.circle.center", json!({"center":[50,40],"radius":10}));
+    run(&mut session, "sketch.finish", json!({}));
+    run(
+        &mut session,
+        "solid.extrude",
+        json!({"sketch":"Ring section","profiles":[{"point":[65,40]}],"start_offset":-5,"distance":7,"body_name":"Ring"}),
+    );
+    let id = run(&mut session, "solid.combine", json!({"target":"Floor","tools":["Ring"],"operation":"join"}))["feature"].as_u64().unwrap();
+    let check = |session: &Session| {
+        let result = session.model.result(id).unwrap();
+        assert!(result.error.is_none());
+        assert!(result.warning.as_ref().is_some_and(|warning| warning.contains("Boolean retry:")), "{result:?}");
+        assert!(
+            result.boolean_diagnostics.events.iter().any(|event| event.strategy == BooleanStrategy::CommonBore),
+            "{:?}",
+            result.boolean_diagnostics
+        );
+        result.boolean_diagnostics.clone()
+    };
+    let original = check(&session);
+    let expected = (10. + slope * 50.) * (8000. - PI * 100.) + PI * 300. * 5.;
+    assert!(rel(volume(&mut session), expected) < 2e-5);
+    let inspected = run(&mut session, "timeline.inspect", json!({"feature":id}));
+    assert_eq!(inspected["boolean_diagnostics"], serde_json::to_value(&original).unwrap());
+    session.refresh();
+    assert_eq!(check(&session), original);
+    run(&mut session, "edit.undo", json!({}));
+    run(&mut session, "edit.redo", json!({}));
+    assert_eq!(check(&session), original);
+    let reopened_doc = solvecraft_doc::Document::from_json(&session.doc.to_json()).unwrap();
+    let reopened = Session::new(reopened_doc);
+    assert_eq!(check(&reopened), original);
+    // A later independent feature must not inherit the earlier retry's warning.
+    run(&mut session, "solid.box", json!({"corner":[200,0,0],"length":5,"width":5,"height":5}));
+    let last = session.model.results.last().unwrap();
+    assert!(last.warning.is_none());
+    assert!(last.boolean_diagnostics.events.is_empty());
+}