fix(board): enforce explicit workspace status limit

src/renderer/src/components/sidebar/WorkspaceKanbanSettingsMenu.test.tsx

@@ -3,6 +3,7 @@ import { createRoot, type Root } from 'react-dom/client'
 import { act, type ReactNode } from 'react'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import type { WorkspaceStatusDefinition } from '../../../../shared/types'
+import { MAX_WORKSPACE_STATUSES } from '../../../../shared/workspace-statuses'
 
 const statuses: WorkspaceStatusDefinition[] = [{ id: 'todo', label: 'Todo' }]
 ;(globalThis as { IS_REACT_ACT_ENVIRONMENT?: boolean }).IS_REACT_ACT_ENVIRONMENT = true
@@ -25,14 +26,22 @@ import WorkspaceKanbanSettingsMenu from './WorkspaceKanbanSettingsMenu'
 let root: Root | null = null
 let container: HTMLDivElement | null = null
 
-function renderMenu(onSyncTaskStatusFromWorkspaceBoardChange = vi.fn()): void {
+function renderMenu({
+  workspaceStatuses = statuses,
+  onSyncTaskStatusFromWorkspaceBoardChange = vi.fn<(enabled: boolean) => void>(),
+  onAddStatus = vi.fn<() => void>()
+}: {
+  workspaceStatuses?: WorkspaceStatusDefinition[]
+  onSyncTaskStatusFromWorkspaceBoardChange?: (enabled: boolean) => void
+  onAddStatus?: () => void
+} = {}): void {
   container = document.createElement('div')
   document.body.appendChild(container)
   root = createRoot(container)
   act(() => {
     root?.render(
       <WorkspaceKanbanSettingsMenu
-        workspaceStatuses={statuses}
+        workspaceStatuses={workspaceStatuses}
         syncTaskStatusFromWorkspaceBoard={false}
         onSyncTaskStatusFromWorkspaceBoardChange={onSyncTaskStatusFromWorkspaceBoardChange}
         onRenameStatus={vi.fn()}
@@ -40,7 +49,7 @@ function renderMenu(onSyncTaskStatusFromWorkspaceBoardChange = vi.fn()): void {
         onChangeStatusIcon={vi.fn()}
         onMoveStatus={vi.fn()}
         onRemoveStatus={vi.fn()}
-        onAddStatus={vi.fn()}
+        onAddStatus={onAddStatus}
       />
     )
   })
@@ -59,7 +68,7 @@ afterEach(() => {
 describe('WorkspaceKanbanSettingsMenu', () => {
   it('renders the task status sync switch and forwards changes', async () => {
     const onChange = vi.fn()
-    renderMenu(onChange)
+    renderMenu({ onSyncTaskStatusFromWorkspaceBoardChange: onChange })
 
     const toggle = document.querySelector<HTMLButtonElement>(
       'button[role="switch"][aria-label="Sync board and issue status"]'
@@ -74,4 +83,42 @@ describe('WorkspaceKanbanSettingsMenu', () => {
 
     expect(onChange).toHaveBeenCalledWith(true)
   })
+
+  it('adds another status below the board limit', () => {
+    const onAddStatus = vi.fn()
+    renderMenu({ onAddStatus })
+
+    const addStatus = Array.from(document.querySelectorAll('button')).find(
+      (button) => button.textContent?.trim() === 'Add status'
+    )
+
+    expect(addStatus?.disabled).toBe(false)
+    addStatus?.click()
+    expect(onAddStatus).toHaveBeenCalledOnce()
+  })
+
+  it('disables adding another status at the explicit board limit', () => {
+    const onAddStatus = vi.fn()
+    renderMenu({
+      workspaceStatuses: Array.from({ length: MAX_WORKSPACE_STATUSES }, (_, index) => ({
+        id: `state-${index + 1}`,
+        label: `State ${index + 1}`
+      })),
+      onAddStatus
+    })
+
+    const addStatus = Array.from(document.querySelectorAll('button')).find(
+      (button) => button.textContent?.trim().startsWith('Add status') === true
+    )
+
+    expect(document.body.textContent).toContain(
+      `${MAX_WORKSPACE_STATUSES} / ${MAX_WORKSPACE_STATUSES}`
+    )
+    expect(addStatus?.textContent).toContain(
+      `${MAX_WORKSPACE_STATUSES} / ${MAX_WORKSPACE_STATUSES}`
+    )
+    expect(addStatus?.disabled).toBe(true)
+    addStatus?.click()
+    expect(onAddStatus).not.toHaveBeenCalled()
+  })
 })

src/renderer/src/components/sidebar/WorkspaceKanbanSettingsMenu.tsx

@@ -11,6 +11,7 @@ import { Tooltip, TooltipContent, TooltipTrigger } from '@/components/ui/tooltip
 import { cn } from '@/lib/utils'
 import { SettingsSwitch } from '../settings/SettingsFormControls'
 import type { WorkspaceStatusDefinition } from '../../../../shared/types'
+import { MAX_WORKSPACE_STATUSES } from '../../../../shared/workspace-statuses'
 import { getWorkspaceStatusVisualMeta } from './workspace-status'
 import WorkspaceStatusAppearancePopover from './WorkspaceStatusAppearancePopover'
 import { translate } from '@/i18n/i18n'
@@ -38,6 +39,8 @@ export default function WorkspaceKanbanSettingsMenu({
   onRemoveStatus,
   onAddStatus
 }: WorkspaceKanbanSettingsMenuProps): React.JSX.Element {
+  const statusLimitReached = workspaceStatuses.length >= MAX_WORKSPACE_STATUSES
+
   return (
     <DropdownMenu modal={false}>
       <Tooltip>
@@ -195,6 +198,7 @@ export default function WorkspaceKanbanSettingsMenu({
             variant="ghost"
             size="xs"
             className="mt-1 h-7 w-full justify-start text-[12px]"
+            disabled={statusLimitReached}
             onClick={onAddStatus}
           >
             <Plus className="size-3.5" />
@@ -202,6 +206,11 @@ export default function WorkspaceKanbanSettingsMenu({
               'auto.components.sidebar.WorkspaceKanbanSettingsMenu.79eb990aa4',
               'Add status'
             )}
+            {statusLimitReached ? (
+              <span className="ml-auto font-normal text-muted-foreground">
+                {workspaceStatuses.length} / {MAX_WORKSPACE_STATUSES}
+              </span>
+            ) : null}
           </Button>
         </div>
       </DropdownMenuContent>

src/shared/workspace-statuses.test.ts

@@ -3,6 +3,7 @@ import {
   WORKSPACE_BOARD_COLUMN_WIDTH_DEFAULT,
   WORKSPACE_BOARD_COLUMN_WIDTH_MAX,
   WORKSPACE_BOARD_COLUMN_WIDTH_MIN,
+  MAX_WORKSPACE_STATUSES,
   clampWorkspaceBoardColumnWidth,
   cloneDefaultWorkspaceStatuses,
   normalizePersistedWorkspaceStatuses,
@@ -10,28 +11,25 @@ import {
 } from './workspace-statuses'
 
 describe('workspace status visuals', () => {
-  it('keeps workflows longer than a dozen columns', () => {
-    // Why: mirroring an external workflow (Jira, Linear) routinely needs more
-    // than a dozen states. The old cap of 12 dropped the extra ones on the
-    // next normalize, with no error and nothing in the UI preventing them.
-    const authored = Array.from({ length: 20 }, (_, index) => ({
-      id: `state-${index}`,
-      label: `State ${index}`
+  it.each([13, 20])('keeps all %i authored columns in order', (count) => {
+    const authored = Array.from({ length: count }, (_, index) => ({
+      id: `state-${index + 1}`,
+      label: `State ${index + 1}`
     }))
 
     const statuses = normalizeWorkspaceStatuses(authored)
 
-    expect(statuses).toHaveLength(20)
-    expect(statuses.at(-1)).toMatchObject({ id: 'state-19', label: 'State 19' })
+    expect(statuses).toHaveLength(count)
+    expect(statuses.map((status) => status.id)).toEqual(authored.map((status) => status.id))
   })
 
-  it('still truncates absurd payloads so corrupted data cannot explode the board', () => {
+  it('clamps corrupted payloads to the exact board limit', () => {
     const corrupted = Array.from({ length: 500 }, (_, index) => ({
       id: `state-${index}`,
       label: `State ${index}`
     }))
 
-    expect(normalizeWorkspaceStatuses(corrupted).length).toBeLessThanOrEqual(64)
+    expect(normalizeWorkspaceStatuses(corrupted)).toHaveLength(MAX_WORKSPACE_STATUSES)
   })
 
   it('keeps the default workflow order', () => {

src/shared/workspace-statuses.ts

@@ -9,13 +9,8 @@ export { DEFAULT_WORKSPACE_STATUSES } from './workspace-status-defaults'
 
 const WORKSPACE_STATUS_GROUP_PREFIX = 'workspace-status:'
 const MAX_STATUS_LABEL_LENGTH = 32
-// Why: corruption guard only — nothing in the board or the sidebar depends on
-// this number, and the renderer never enforces it, so a low cap just truncated
-// legitimate columns on the next normalize. Teams mirroring an external
-// workflow (Jira, Linear) routinely need more than a dozen states; the board
-// already scrolls horizontally and groups by status, so the extra columns cost
-// nothing structurally.
-const MAX_WORKSPACE_STATUSES = 64
+// Bounds corrupted payloads and the board's eager lane rendering.
+export const MAX_WORKSPACE_STATUSES = 64
 type WorkspaceStatusNormalizationOptions = {
   migrateDefaultWorkflowStatuses?: boolean
   migrateLegacyDefaultStatusVisuals?: boolean