WIP: coordinate rename green; tile-route walk admits the coordinate (improvise-fdk1)

crates/improvise-command/src/ui/project.rs

@@ -5236,7 +5236,9 @@ mod cell_identity {
     /// so `Derived` is never right here (improvise-hoxy).
     fn names_its_column(col: Option<&RecordCol>, id: Option<&CellId>) -> bool {
         match (col, id) {
-            (Some(RecordCol::Category(_)), Some(CellId::Coordinate)) => true,
+            (Some(RecordCol::Category(c)), Some(CellId::Coordinate { category, .. })) => {
+                category == c
+            }
             (Some(RecordCol::Measure(m)), Some(CellId::Record(cell))) => {
                 cell.measure.as_deref() == Some(m.as_str())
             }

crates/improvise-wasm-client/tests/browser_round_trip.rs

@@ -471,6 +471,7 @@ fn the_tile_bar_route_into_records_mode_does_not_strand_the_user() {
         cols >= 3,
         "the fixture must reach past the coordinate column"
     );
+    let mut coordinates = 0;
     for col in 0..cols {
         while client.state().view.cursor().selected.1 < col {
             press(&mut host, id, &mut client, "l");
@@ -483,6 +484,17 @@ fn the_tile_bar_route_into_records_mode_does_not_strand_the_user() {
         // a keypress this client might decline.
         client.state_mut().view.status_msg = "\u{0}unsaid".to_string();
         press(&mut host, id, &mut client, "i");
+        // A coordinate's Enter composes a rename since improvise-fdk1, so its
+        // editor is a door rather than a black hole.
+        if kind.starts_with("Some(Coordinate") {
+            coordinates += 1;
+            assert!(
+                client.state().view.mode.is_editing(),
+                "column {col} ({kind}): a coordinate's editor must open"
+            );
+            press(&mut host, id, &mut client, "Escape");
+            continue;
+        }
         assert_ne!(
             client.state().view.status_msg,
             "\u{0}unsaid",
@@ -495,6 +507,10 @@ fn the_tile_bar_route_into_records_mode_does_not_strand_the_user() {
              client cannot commit — an Enter that is a black hole"
         );
     }
+    assert!(
+        coordinates > 0 && coordinates < cols,
+        "the walk must cover both a coordinate and a declined column"
+    );
 }
 
 // ── Ctrl-S, all the way to storage (improvise-jz6w) ─────────────────────