Add API layer, Zustand store, markdown renderer, types

lib/store.ts

@@ -0,0 +1,74 @@
+import { create } from 'zustand';
+import { persist } from 'zustand/middleware';
+import type { Conversation, Message, Settings, Status } from './api';
+
+interface AppState {
+  // Conversations
+  conversations: Conversation[];
+  currentId: string | null;
+  messages: Message[];
+  setConversations: (c: Conversation[]) => void;
+  setCurrentId: (id: string | null) => void;
+  setMessages: (m: Message[]) => void;
+  addMessage: (m: Message) => void;
+
+  // Settings
+  settings: Settings;
+  setSettings: (s: Partial<Settings>) => void;
+
+  // Status
+  status: Status | null;
+  setStatus: (s: Status) => void;
+
+  // UI
+  settingsOpen: boolean;
+  setSettingsOpen: (open: boolean) => void;
+  sidebarOpen: boolean;
+  setSidebarOpen: (open: boolean) => void;
+  isLoading: boolean;
+  setIsLoading: (loading: boolean) => void;
+}
+
+export const useStore = create<AppState>()(
+  persist(
+    (set) => ({
+      // Conversations
+      conversations: [],
+      currentId: null,
+      messages: [],
+      setConversations: (conversations) => set({ conversations }),
+      setCurrentId: (currentId) => set({ currentId }),
+      setMessages: (messages) => set({ messages }),
+      addMessage: (m) => set((s) => ({ messages: [...s.messages, m] })),
+
+      // Settings — defaults
+      settings: {
+        theme: 'light',
+        font_size: 'medium',
+        web_search: true,
+        show_sources: true,
+      },
+      setSettings: (s) =>
+        set((state) => ({ settings: { ...state.settings, ...s } })),
+
+      // Status
+      status: null,
+      setStatus: (status) => set({ status }),
+
+      // UI
+      settingsOpen: false,
+      setSettingsOpen: (settingsOpen) => set({ settingsOpen }),
+      sidebarOpen: false,
+      setSidebarOpen: (sidebarOpen) => set({ sidebarOpen }),
+      isLoading: false,
+      setIsLoading: (isLoading) => set({ isLoading }),
+    }),
+    {
+      name: 'aaronai-store',
+      partialize: (state) => ({
+        settings: state.settings,
+        currentId: state.currentId,
+      }),
+    }
+  )
+);