fix(workspace): keep workspace ids as strings so a switch survives reload

mateclaw-ui/src/api/index.ts

@@ -87,7 +87,7 @@ export const authApi = {
     http.post('/auth/login', data),
   listUsers: () => http.get('/auth/users'),
   createUser: (data: any) => http.post('/auth/users', data),
-  changePassword: (id: number, oldPassword: string, newPassword: string) =>
+  changePassword: (id: string | number, oldPassword: string, newPassword: string) =>
     http.put(`/auth/users/${id}/password`, null, { params: { oldPassword, newPassword } }),
 }
 
@@ -953,7 +953,7 @@ export const hotCacheApi = {
 
 export interface WorkflowSummary {
   id: number
-  workspaceId: number
+  workspaceId: string | number
   name: string
   description?: string
   enabled: boolean
@@ -985,7 +985,7 @@ export interface WorkflowRun {
   id: number
   workflowId: number
   revisionId: number
-  workspaceId: number
+  workspaceId: string | number
   state: string
   triggeredBy?: string
   initialInputRef?: string
@@ -1048,7 +1048,7 @@ export interface ResumeResponse {
 }
 
 export const workflowApi = {
-  list: (workspaceId: number) =>
+  list: (workspaceId: string | number) =>
     http.get<WorkflowSummary[]>('/workflows', { params: { workspaceId } }),
   get: (id: number) => http.get<WorkflowSummary>(`/workflows/${id}`),
   create: (data: Partial<WorkflowSummary>) =>
@@ -1119,7 +1119,7 @@ export interface WorkflowDraftTemplate {
 
 export interface TriggerSummary {
   id: number
-  workspaceId: number
+  workspaceId: string | number
   name?: string
   patternType: string
   patternJson: string
@@ -1149,7 +1149,7 @@ export interface TriggerSummary {
 }
 
 export const triggerApi = {
-  list: (workspaceId: number) =>
+  list: (workspaceId: string | number) =>
     http.get<TriggerSummary[]>('/triggers', { params: { workspaceId } }),
   get: (id: number) => http.get<TriggerSummary>(`/triggers/${id}`),
   create: (data: Partial<TriggerSummary>) =>
@@ -1158,7 +1158,7 @@ export const triggerApi = {
     http.put<TriggerSummary>(`/triggers/${id}`, data),
   delete: (id: number) => http.delete(`/triggers/${id}`),
   ingestEvent: (envelope: {
-    workspaceId: number
+    workspaceId: string | number
     patternType: string
     eventId?: string
     senderId?: string

mateclaw-ui/src/components/ChangePasswordDialog.vue

@@ -107,7 +107,7 @@ async function handleSubmit() {
   }
   submitting.value = true
   try {
-    const userId = Number(localStorage.getItem('userId') || '1')
+    const userId = localStorage.getItem('userId') || '1'
     await authApi.changePassword(userId, form.oldPassword, form.newPassword)
     mcToast.success(t('auth.passwordChanged'))
     close()

mateclaw-ui/src/components/chat/ConversationSidebar.vue

@@ -397,7 +397,7 @@ function hasUnread(conv: Conversation): boolean {
   if (!Number.isFinite(lastActive)) return false
   let viewed = 0
   try {
-    viewed = Number(localStorage.getItem(VIEWED_KEY_PREFIX + conv.conversationId) || '0')
+    viewed = Number(localStorage.getItem(VIEWED_KEY_PREFIX + conv.conversationId) || '0') // snowflake-precision-ok: stored value is a last-viewed epoch-ms timestamp, not an id
   } catch {
     // Treat as never-viewed when storage is unavailable.
   }

mateclaw-ui/src/components/workspace/WorkspaceSwitcher.vue

@@ -127,7 +127,7 @@ onMounted(() => {
   store.fetchWorkspaces()
 })
 
-function onSelect(id: number) {
+function onSelect(id: string) {
   open.value = false
   if (id !== currentWorkspaceId.value) {
     store.switchWorkspace(id)

mateclaw-ui/src/stores/useWorkspaceStore.ts

@@ -5,12 +5,14 @@ import type { Capability, WorkspaceRole } from '@/composables/capabilities'
 import { ROLE_LEVEL } from '@/composables/capabilities'
 
 export interface Workspace {
-  id: number
+  // Backend-issued Snowflake id — kept as a string for its whole lifecycle so a
+  // Number() round-trip never truncates the 19-digit value (see CLAUDE.md).
+  id: string
   name: string
   slug: string
   description?: string
   basePath?: string
-  ownerId?: number
+  ownerId?: string
   settingsJson?: string
   createTime?: string
   updateTime?: string
@@ -24,8 +26,11 @@ export interface Workspace {
 
 export const useWorkspaceStore = defineStore('workspace', () => {
   const workspaces = ref<Workspace[]>([])
-  const currentWorkspaceId = ref<number | null>(
-    Number(localStorage.getItem('mc-workspace-id')) || null
+  // Stored as a string: the workspace id is a 19-digit Snowflake, so a Number()
+  // coercion here would corrupt every non-default workspace id and the reloaded
+  // value would match no workspace, silently snapping back to Default.
+  const currentWorkspaceId = ref<string | null>(
+    localStorage.getItem('mc-workspace-id') || null
   )
   const loading = ref(false)
 
@@ -102,9 +107,9 @@ export const useWorkspaceStore = defineStore('workspace', () => {
     }
   }
 
-  async function switchWorkspace(id: number) {
+  async function switchWorkspace(id: string) {
     currentWorkspaceId.value = id
-    localStorage.setItem('mc-workspace-id', String(id))
+    localStorage.setItem('mc-workspace-id', id)
     accessLoaded.value = false
     currentCapabilities.value = new Set()
     await refreshAccess()