Fix Kanban dashboard initial board selection

plugins/kanban/dashboard/dist/index.js

@@ -413,7 +413,7 @@
 
   function KanbanPage() {
     const { t } = useI18n();
-    const [board, setBoard] = useState(() => readSelectedBoard() || "default");
+    const [board, setBoard] = useState(() => readSelectedBoard() || null);
     const [boardList, setBoardList] = useState([]);      // [{slug, name, counts, ...}]
     const [showNewBoard, setShowNewBoard] = useState(false);
 
@@ -494,11 +494,16 @@
       return SDK.fetchJSON(withBoard(`${API}/boards`, board))
         .then(function (data) {
           const boards = (data && data.boards) || [];
+          const storedBoard = readSelectedBoard();
           setBoardList(boards);
+          if (!storedBoard && !board && data && data.current) {
+            setBoard(data.current);
+            return;
+          }
           // If the stored slug isn't in the list any longer (board was
           // deleted in the CLI while dashboard was open), fall back to
           // default so the UI doesn't hang on a 404.
-          if (board !== "default" && !boards.find(function (b) { return b.slug === board; })) {
+          if (board && board !== "default" && !boards.find(function (b) { return b.slug === board; })) {
             setBoard("default");
             writeSelectedBoard("default");
           }

tests/plugins/test_kanban_dashboard_plugin.py

@@ -202,6 +202,25 @@ def test_dashboard_client_side_filtering_includes_tenant_filter():
     assert "[boardData, tenantFilter, assigneeFilter, search]" in js
 
 
+def test_dashboard_initial_board_uses_backend_current_when_unpinned():
+    """Fresh browsers should open the backend current board, not default.
+
+    Explicit dashboard selections are stored in localStorage and should still
+    win, but an empty localStorage state must adopt the API's ``current`` board
+    so multi-board installs do not look empty on first load.
+    """
+
+    repo_root = Path(__file__).resolve().parents[2]
+    bundle = repo_root / "plugins" / "kanban" / "dashboard" / "dist" / "index.js"
+    js = bundle.read_text()
+
+    assert 'useState(() => readSelectedBoard() || null)' in js
+    assert "const storedBoard = readSelectedBoard();" in js
+    assert "if (!storedBoard && !board && data && data.current)" in js
+    assert "setBoard(data.current);" in js
+    assert 'readSelectedBoard() || "default"' not in js
+
+
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