fix(bases): always render kanban NO_VALUE column unless explicitly hidden

apps/client/src/features/base/hooks/__tests__/use-kanban-groups.spec.ts

@@ -44,6 +44,16 @@ describe("partitionRowsByGroup", () => {
     expect(result.columns.map((c) => c.key)).toEqual([NO_VALUE_CHOICE_ID, "c1"]);
   });
 
+  it("hides the NO_VALUE column when hiddenChoiceIds includes the sentinel", () => {
+    const result = partitionRowsByGroup(
+      rows,
+      property,
+      [NO_VALUE_CHOICE_ID],
+      undefined,
+    );
+    expect(result.columns.map((c) => c.key)).toEqual(["c1", "c2"]);
+  });
+
   it("respects an override choiceOrder", () => {
     const result = partitionRowsByGroup(
       rows,
@@ -79,7 +89,14 @@ describe("partitionRowsByGroup", () => {
       undefined,
       ["c1", "deleted-choice", "c2"],
     );
-    expect(result.columns.map((c) => c.key)).toEqual(["c1", "c2"]);
+    // 'deleted-choice' is filtered out as stale. NO_VALUE is auto-appended
+    // (it's never in the property's choices but always rendered unless
+    // explicitly hidden via hiddenChoiceIds).
+    expect(result.columns.map((c) => c.key)).toEqual([
+      "c1",
+      "c2",
+      NO_VALUE_CHOICE_ID,
+    ]);
   });
 
   it("returns null columns when groupByPropertyId is unset", () => {

apps/client/src/features/base/hooks/use-kanban-groups.ts

@@ -55,19 +55,18 @@ export function partitionRowsByGroup(
     const valid = new Set<string>([...propertyChoiceIds, NO_VALUE_CHOICE_ID]);
     const fromOverride = choiceOrderOverride.filter((id) => valid.has(id));
     const overrideSet = new Set(fromOverride);
+    // Always include NO_VALUE somewhere (sentinel for rows with no
+    // grouping value). If the user listed it in the override, respect
+    // that position; otherwise append it after the override entries.
+    const noValueTail = overrideSet.has(NO_VALUE_CHOICE_ID)
+      ? []
+      : [NO_VALUE_CHOICE_ID];
+    // Append any property choices the user hasn't placed yet (new
+    // choices added to the property after this view was saved).
     const missingChoices = propertyChoiceIds.filter(
       (id) => !overrideSet.has(id),
     );
-    // Only inject NO_VALUE implicitly when there are newly-discovered choices
-    // to append — when the override fully covers the current property, leave
-    // NO_VALUE off unless the user listed it explicitly.
-    const tail =
-      missingChoices.length > 0
-        ? overrideSet.has(NO_VALUE_CHOICE_ID)
-          ? missingChoices
-          : [NO_VALUE_CHOICE_ID, ...missingChoices]
-        : [];
-    order = [...fromOverride, ...tail];
+    order = [...fromOverride, ...noValueTail, ...missingChoices];
   } else {
     order = [NO_VALUE_CHOICE_ID, ...propertyChoiceIds];
   }