feat: Apple-style donation-focused landing page + Azure OpenAI fixes

Major updates:
- Replace homepage with clean, minimalist Apple-style landing page
- Focus on donation messaging and mission statement
- Add comprehensive AI chat analysis documentation
- Fix Azure OpenAI configuration with correct endpoints
- Update embedding API to use text-embedding-ada-002 (1536 dims)

Landing Page Features:
- Hero section with tagline "Every Scripture. Every Language. Forever Free"
- Mission statement emphasizing free access
- Matthew 10:8 verse highlight
- 6 feature cards (Global Library, Multilingual, Prayer Wall, AI Chat, Privacy, Offline)
- Donation CTA sections with PayPal and card options
- "Why It Matters" section with dark background
- Clean footer with navigation links

Technical Changes:
- Updated .env.local with new Azure credentials
- Fixed vector-search.ts to support separate embed API version
- Integrated AuthModal into Bible reader and prayers page
- Made prayer filters collapsible and mobile-responsive
- Changed language picker to single-select

Documentation Created:
- AI_CHAT_FIX_PLAN.md - Comprehensive implementation plan
- AI_CHAT_VERIFICATION_FINDINGS.md - Database analysis
- AI_CHAT_ANALYSIS_SUMMARY.md - Executive summary
- AI_CHAT_STATUS_UPDATE.md - Current status and next steps
- logo.svg - App logo (MenuBook icon)

Build: ✅ Successful (Next.js 15.5.3)

🤖 Generated with Claude Code

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

app/[locale]/bible/reader.tsx

@@ -9,6 +9,7 @@ import { OfflineBibleReader } from '@/components/bible/offline-bible-reader'
 import { offlineStorage } from '@/lib/offline-storage'
 import { InstallPrompt, useInstallPrompt } from '@/components/pwa/install-prompt'
 import { useSwipeable } from 'react-swipeable'
+import { AuthModal } from '@/components/auth/auth-modal'
 import {
   Box,
   Typography,
@@ -315,6 +316,11 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
     verse: null
   })
 
+  // Auth modal state
+  const [authModalOpen, setAuthModalOpen] = useState(false)
+  const [authModalMessage, setAuthModalMessage] = useState<string>('')
+  const [pendingAction, setPendingAction] = useState<(() => void) | null>(null)
+
   // Refs
   const contentRef = useRef<HTMLDivElement>(null)
   const verseRefs = useRef<{[key: number]: HTMLDivElement}>({})
@@ -990,6 +996,26 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
     }
   }
 
+  const requireAuth = (action: () => void, message: string) => {
+    if (!user) {
+      setAuthModalMessage(message)
+      setPendingAction(() => action)
+      setAuthModalOpen(true)
+      return false
+    }
+    return true
+  }
+
+  const handleAuthSuccess = () => {
+    setAuthModalOpen(false)
+    setAuthModalMessage('')
+    // Execute pending action if there is one
+    if (pendingAction) {
+      pendingAction()
+      setPendingAction(null)
+    }
+  }
+
   const handlePreviousChapter = () => {
     // Trigger transition animation
     setIsTransitioning(true)
@@ -1077,9 +1103,8 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
   const handleChapterBookmark = async () => {
     if (!selectedBook || !selectedChapter) return
 
-    // If user is not authenticated, redirect to login
-    if (!user) {
-      router.push(`/${locale}/login?redirect=${encodeURIComponent(`/${locale}/bible?version=${selectedVersion}&book=${selectedBook}&chapter=${selectedChapter}`)}`)
+    // If user is not authenticated, show auth modal
+    if (!requireAuth(handleChapterBookmark, 'Please login to bookmark this chapter')) {
       return
     }
 
@@ -1123,9 +1148,8 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
   }
 
   const handleVerseBookmark = async (verse: BibleVerse) => {
-    // If user is not authenticated, redirect to login
-    if (!user) {
-      router.push(`/${locale}/login?redirect=${encodeURIComponent(`/${locale}/bible?version=${selectedVersion}&book=${selectedBook}&chapter=${selectedChapter}&verse=${verse.verseNum}`)}`)
+    // If user is not authenticated, show auth modal
+    if (!requireAuth(() => handleVerseBookmark(verse), 'Please login to bookmark this verse')) {
       return
     }
 
@@ -1184,9 +1208,8 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
   }
 
   const handleVerseChat = (verse: BibleVerse) => {
-    // If user is not authenticated, redirect to login
-    if (!user) {
-      router.push(`/${locale}/login?redirect=${encodeURIComponent(`/${locale}/bible?version=${selectedVersion}&book=${selectedBook}&chapter=${selectedChapter}&verse=${verse.verseNum}`)}`)
+    // If user is not authenticated, show auth modal
+    if (!requireAuth(() => handleVerseChat(verse), 'Please login to ask AI about this verse')) {
       return
     }
 
@@ -1255,9 +1278,8 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
   }
 
   const handleHighlightVerse = async (verse: BibleVerse, color: TextHighlight['color']) => {
-    // If user is not authenticated, redirect to login
-    if (!user) {
-      router.push(`/${locale}/login?redirect=${encodeURIComponent(`/${locale}/bible?version=${selectedVersion}&book=${selectedBook}&chapter=${selectedChapter}&verse=${verse.verseNum}`)}`)
+    // If user is not authenticated, show auth modal
+    if (!requireAuth(() => handleHighlightVerse(verse, color), 'Please login to highlight this verse')) {
       return
     }
 
@@ -1397,8 +1419,8 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
   }
 
   const handleSetFavoriteVersion = async () => {
-    if (!user) {
-      router.push(`/${locale}/login?redirect=${encodeURIComponent(`/${locale}/bible?version=${selectedVersion}&book=${selectedBook}&chapter=${selectedChapter}`)}`)
+    // If user is not authenticated, show auth modal
+    if (!requireAuth(handleSetFavoriteVersion, 'Please login to set your default Bible version')) {
       return
     }
 
@@ -2667,6 +2689,19 @@ export default function BibleReaderNew({ initialVersion, initialBook, initialCha
           {copyFeedback.message}
         </Alert>
       </Snackbar>
+
+      {/* Auth Modal */}
+      <AuthModal
+        open={authModalOpen}
+        onClose={() => {
+          setAuthModalOpen(false)
+          setAuthModalMessage('')
+          setPendingAction(null)
+        }}
+        onSuccess={handleAuthSuccess}
+        message={authModalMessage}
+        defaultTab="login"
+      />
     </Box>
   )
 }