feat: add Proaktiv and KI Chat tabs to AI sidebar

frontend/src/store/uiStore.ts

@@ -2,6 +2,7 @@ import { create } from 'zustand';
 
 export type Theme = 'light' | 'dark' | 'system';
 export type Locale = 'de' | 'en';
+export type AISidebarTab = 'proactive' | 'chat';
 
 export interface Toast {
   id: string;
@@ -16,6 +17,7 @@ export interface UIState {
   sidebarOpen: boolean;
   suggestionSidebarOpen: boolean;
   aiSidebarCollapsed: boolean;
+  aiSidebarTab: AISidebarTab;
   toasts: Toast[];
   setTheme: (theme: Theme) => void;
   setLocale: (locale: Locale) => void;
@@ -24,6 +26,8 @@ export interface UIState {
   toggleSuggestionSidebar: () => void;
   toggleAISidebar: () => void;
   setAISidebarCollapsed: (collapsed: boolean) => void;
+  setAISidebarTab: (tab: AISidebarTab) => void;
+  openAISidebarProactive: () => void;
   addToast: (toast: Omit<Toast, 'id'>) => void;
   removeToast: (id: string) => void;
   clearToasts: () => void;
@@ -37,6 +41,7 @@ export const useUIStore = create<UIState>((set) => ({
   sidebarOpen: true,
   suggestionSidebarOpen: false,
   aiSidebarCollapsed: true,
+  aiSidebarTab: 'chat',
   toasts: [],
   setTheme: (theme) => {
     localStorage.setItem('leocrm_theme', theme);
@@ -51,6 +56,8 @@ export const useUIStore = create<UIState>((set) => ({
   toggleSuggestionSidebar: () => set((s) => ({ suggestionSidebarOpen: !s.suggestionSidebarOpen })),
   toggleAISidebar: () => set((s) => ({ aiSidebarCollapsed: !s.aiSidebarCollapsed })),
   setAISidebarCollapsed: (collapsed) => set({ aiSidebarCollapsed: collapsed }),
+  setAISidebarTab: (tab) => set({ aiSidebarTab: tab }),
+  openAISidebarProactive: () => set({ aiSidebarCollapsed: false, aiSidebarTab: 'proactive' }),
   addToast: (toast) => {
     const id = `toast-${++toastIdCounter}`;
     set((s) => ({ toasts: [...s.toasts, { ...toast, id }] }));