fix: polish issue board query limits

ui/src/components/IssuesList.test.tsx

@@ -483,6 +483,46 @@ describe("IssuesList", () => {
     });
   });
 
+  it("shows a refinement hint when a board column hits its server cap", async () => {
+    localStorage.setItem(
+      "paperclip:test-issues:company-1",
+      JSON.stringify({ viewMode: "board" }),
+    );
+
+    const cappedBacklogIssues = Array.from({ length: 200 }, (_, index) =>
+      createIssue({
+        id: `issue-backlog-${index + 1}`,
+        identifier: `PAP-${index + 1}`,
+        title: `Backlog issue ${index + 1}`,
+        status: "backlog",
+      }),
+    );
+
+    mockIssuesApi.list.mockImplementation((_companyId, filters) => {
+      if (filters?.status === "backlog") return Promise.resolve(cappedBacklogIssues);
+      return Promise.resolve([]);
+    });
+
+    const { root } = renderWithQueryClient(
+      <IssuesList
+        issues={[]}
+        agents={[]}
+        projects={[]}
+        viewStateKey="paperclip:test-issues"
+        onUpdateIssue={() => undefined}
+      />,
+      container,
+    );
+
+    await waitForAssertion(() => {
+      expect(container.textContent).toContain("Some board columns are showing up to 200 issues. Refine filters or search to reveal the rest.");
+    });
+
+    act(() => {
+      root.unmount();
+    });
+  });
+
   it("caps the first paint for large issue lists", async () => {
     const manyIssues = Array.from({ length: 220 }, (_, index) =>
       createIssue({

ui/src/components/IssuesList.tsx

@@ -57,14 +57,14 @@ import { KanbanBoard } from "./KanbanBoard";
 import { buildIssueTree, countDescendants } from "../lib/issue-tree";
 import { buildSubIssueDefaultsForViewer } from "../lib/subIssueDefaults";
 import { statusBadge } from "../lib/status-colors";
-import type { Issue, Project } from "@paperclipai/shared";
+import { ISSUE_STATUSES, type Issue, type Project } from "@paperclipai/shared";
 const ISSUE_SEARCH_DEBOUNCE_MS = 250;
 const ISSUE_SEARCH_RESULT_LIMIT = 200;
 const ISSUE_BOARD_COLUMN_RESULT_LIMIT = 200;
 const INITIAL_ISSUE_ROW_RENDER_LIMIT = 150;
 const ISSUE_ROW_RENDER_BATCH_SIZE = 150;
 const ISSUE_ROW_RENDER_BATCH_DELAY_MS = 0;
-const boardIssueStatuses = ["backlog", "todo", "in_progress", "in_review", "blocked", "done", "cancelled"];
+const boardIssueStatuses = ISSUE_STATUSES;
 
 /* ── View state ── */
 
@@ -621,6 +621,13 @@ export function IssuesList({
     if (merged.size > 0) return [...merged.values()];
     return isPending ? issues : [];
   }, [boardIssueQueries, issues, searchWithinLoadedIssues, viewState.viewMode]);
+  const boardColumnLimitReached = useMemo(
+    () =>
+      viewState.viewMode === "board" &&
+      !searchWithinLoadedIssues &&
+      boardIssueQueries.some((query) => (query.data?.length ?? 0) === ISSUE_BOARD_COLUMN_RESULT_LIMIT),
+    [boardIssueQueries, searchWithinLoadedIssues, viewState.viewMode],
+  );
 
   const filtered = useMemo(() => {
     const useRemoteSearch = normalizedIssueSearch.length > 0 && !searchWithinLoadedIssues;
@@ -933,6 +940,11 @@ export function IssuesList({
           Showing up to {ISSUE_SEARCH_RESULT_LIMIT} matches. Refine the search to narrow further.
         </p>
       )}
+      {boardColumnLimitReached && (
+        <p className="text-xs text-muted-foreground">
+          Some board columns are showing up to {ISSUE_BOARD_COLUMN_RESULT_LIMIT} issues. Refine filters or search to reveal the rest.
+        </p>
+      )}
       {!isLoading && filtered.length === 0 && viewState.viewMode === "list" && (
         <EmptyState
           icon={CircleDot}