Add complete Biblical Guide web application with Material UI

Implemented comprehensive Romanian Biblical Guide web app:
- Next.js 15 with App Router and TypeScript
- Material UI 7.3.2 for modern, responsive design
- PostgreSQL database with Prisma ORM
- Complete Bible reader with book/chapter navigation
- AI-powered biblical chat with Romanian responses
- Prayer wall for community prayer requests
- Advanced Bible search with filters and highlighting
- Sample Bible data imported from API.Bible
- All API endpoints created and working
- Professional Material UI components throughout
- Responsive layout with navigation and theme

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/store/index.ts

@@ -0,0 +1,46 @@
+import { create } from 'zustand'
+import { persist } from 'zustand/middleware'
+import { User, Bookmark } from '@/types'
+
+interface AppState {
+  user: User | null
+  theme: 'light' | 'dark'
+  fontSize: 'small' | 'medium' | 'large'
+  currentBook: number
+  currentChapter: number
+  bookmarks: Bookmark[]
+  setUser: (user: User | null) => void
+  setTheme: (theme: 'light' | 'dark') => void
+  setFontSize: (size: 'small' | 'medium' | 'large') => void
+  setCurrentBook: (book: number) => void
+  setCurrentChapter: (chapter: number) => void
+  addBookmark: (bookmark: Bookmark) => void
+  removeBookmark: (bookmarkId: string) => void
+}
+
+export const useStore = create<AppState>()(
+  persist(
+    (set) => ({
+      user: null,
+      theme: 'light',
+      fontSize: 'medium',
+      currentBook: 1,
+      currentChapter: 1,
+      bookmarks: [],
+      setUser: (user) => set({ user }),
+      setTheme: (theme) => set({ theme }),
+      setFontSize: (fontSize) => set({ fontSize }),
+      setCurrentBook: (currentBook) => set({ currentBook }),
+      setCurrentChapter: (currentChapter) => set({ currentChapter }),
+      addBookmark: (bookmark) => set((state) => ({
+        bookmarks: [...state.bookmarks, bookmark]
+      })),
+      removeBookmark: (bookmarkId) => set((state) => ({
+        bookmarks: state.bookmarks.filter(b => b.id !== bookmarkId)
+      })),
+    }),
+    {
+      name: 'bible-chat-storage',
+    }
+  )
+)