fix(renderer): preserve desktop error codes

src/renderer/state/slices/company.ts

@@ -9,6 +9,13 @@ import type {
   StandupReport,
   TaskRecord,
 } from "@shared/types";
+import {
+  describeDesktopError,
+  formatDesktopResultError,
+  normalizeAppErrorNotice,
+  type AppErrorInput,
+  type AppErrorNotice,
+} from "../../lib/desktop";
 
 // Sidebar badge counts and inbox items both live in the renderer —
 // derived on every read from the snapshot (see `@shared/sidebar-badges`
@@ -26,11 +33,11 @@ export interface CompanySlice {
   snapshotRevision: number;
   companyMetrics: CompanyMetrics | null;
   standupReport: StandupReport | null;
-  error: string | null;
+  error: AppErrorNotice | null;
   setSnapshot: (snapshot: ProfileSnapshot | null) => void;
   setCompanyMetrics: (metrics: CompanyMetrics | null) => void;
   setStandupReport: (report: StandupReport | null) => void;
-  setError: (error: string | null) => void;
+  setError: (error: AppErrorInput) => void;
   refreshSnapshot: () => Promise<void>;
   patchTask: (task: TaskRecord) => void;
   removeTask: (taskId: string) => void;
@@ -68,7 +75,7 @@ export const createCompanySlice: StateCreator<
     }),
   setError: (error) =>
     set((state) => {
-      state.error = error;
+      state.error = normalizeAppErrorNotice(error);
     }),
   refreshSnapshot: async () => {
     try {
@@ -80,12 +87,12 @@ export const createCompanySlice: StateCreator<
         });
       } else {
         set((state) => {
-          state.error = result.error.message;
+          state.error = formatDesktopResultError(result.error);
         });
       }
     } catch (err) {
       set((state) => {
-        state.error = err instanceof Error ? err.message : String(err);
+        state.error = describeDesktopError(err);
       });
     }
   },

src/renderer/state/slices/ui.ts

@@ -2,10 +2,11 @@ import type { StateCreator } from "zustand";
 import type { AppState } from "../store";
 import type { AppLocale } from "@shared/locale";
 import { DEFAULT_LOCALE } from "@shared/locale";
+import type { AppErrorNotice } from "../../lib/desktop";
 
 export interface Toast {
   id: string;
-  message: string;
+  message: string | AppErrorNotice;
   tone: "success" | "danger" | "warn";
 }
 
@@ -29,7 +30,7 @@ export interface UiSlice {
   setTaskViewMode: (mode: "list" | "kanban") => void;
   setTaskInspectorTab: (tab: TaskInspectorTab) => void;
   incrementLogRevision: () => void;
-  addToast: (message: string, tone?: Toast["tone"]) => void;
+  addToast: (message: Toast["message"], tone?: Toast["tone"]) => void;
   dismissToast: (id: string) => void;
 }