Add AI chat feature for verse explanations and fix login redirect handling

Bible Reader Enhancements:
- Add chat icon to each verse for AI explanations
- Implement handleVerseChat function with pre-filled contextual messages
- Chat opens with message: "Explain in depth this verse [text] from [version], [book] [chapter:verse] and its meaning"
- Visible to all users, redirects to login for unauthenticated users
- Fix copy message translation from 'bible.copied' to 'copied'

Login System Improvements:
- Fix redirect parameter handling in login pages
- Users are now properly redirected to /bible page after successful login
- Preserve redirect URL parameters through login flow
- Add Suspense boundaries for useSearchParams compliance
- Ensure verse/chapter context is maintained after login

Technical Changes:
- Add Chat icon import from Material-UI
- Implement floating chat event dispatch system
- Fix Next.js 15 build warnings with proper Suspense wrapping
- Maintain existing UX patterns (visible to all, functional for authenticated users)

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

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

app/[locale]/auth/login/page.tsx

@@ -1,7 +1,7 @@
 'use client'
 
-import { useState } from 'react'
-import { useRouter } from 'next/navigation'
+import { useState, Suspense } from 'react'
+import { useRouter, useSearchParams } from 'next/navigation'
 import { useTranslations, useLocale } from 'next-intl'
 import {
   Container,
@@ -13,7 +13,8 @@ import {
   Link,
   Card,
   CardContent,
-  Divider
+  Divider,
+  CircularProgress
 } from '@mui/material'
 import {
   MenuBook,
@@ -23,14 +24,20 @@ import {
 import { LoginForm } from '@/components/auth/login-form'
 import { RegisterForm } from '@/components/auth/register-form'
 
-export default function AuthPage() {
+function AuthContent() {
   const [activeTab, setActiveTab] = useState(0)
   const router = useRouter()
   const locale = useLocale()
+  const searchParams = useSearchParams()
   const t = useTranslations('auth')
 
   const handleAuthSuccess = () => {
-    router.push(`/${locale}`)
+    const redirect = searchParams.get('redirect')
+    if (redirect) {
+      router.push(redirect)
+    } else {
+      router.push(`/${locale}`)
+    }
   }
 
   const handleTabChange = (event: React.SyntheticEvent, newValue: number) => {
@@ -130,4 +137,18 @@ export default function AuthPage() {
       </Card>
     </Container>
   )
+}
+
+export default function AuthPage() {
+  return (
+    <Suspense fallback={
+      <Container maxWidth="sm" sx={{ mt: 8 }}>
+        <Box display="flex" justifyContent="center" alignItems="center" minHeight="400px">
+          <CircularProgress />
+        </Box>
+      </Container>
+    }>
+      <AuthContent />
+    </Suspense>
+  )
 }

app/[locale]/bible/reader.tsx

@@ -68,7 +68,8 @@ import {
   ExpandMore,
   MenuBook,
   Visibility,
-  Speed
+  Speed,
+  Chat
 } from '@mui/icons-material'
 
 interface BibleVerse {
@@ -664,11 +665,32 @@ export default function BibleReaderNew() {
     navigator.clipboard.writeText(text).then(() => {
       setCopyFeedback({
         open: true,
-        message: t('bible.copied')
+        message: t('copied')
       })
     })
   }
 
+  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=${verse.verseNum}`)}`)
+      return
+    }
+
+    const versionName = versions.find(v => v.id === selectedVersion)?.name || selectedVersion
+    const bookName = currentBook?.name || 'Unknown Book'
+
+    const initialMessage = `Explain in depth this verse "${verse.text}" from ${versionName}, ${bookName} ${selectedChapter}:${verse.verseNum} and its meaning`
+
+    // Dispatch event to open floating chat with the pre-filled message
+    window.dispatchEvent(new CustomEvent('floating-chat:open', {
+      detail: {
+        initialMessage: initialMessage,
+        fullscreen: false
+      }
+    }))
+  }
+
   const getThemeStyles = () => {
     switch (preferences.theme) {
       case 'dark':
@@ -765,6 +787,13 @@ export default function BibleReaderNew() {
             >
               <ContentCopy fontSize="small" />
             </IconButton>
+            <IconButton
+              size="small"
+              onClick={() => handleVerseChat(verse)}
+              sx={{ color: 'action.active' }}
+            >
+              <Chat fontSize="small" />
+            </IconButton>
           </Box>
         )}
       </Box>

app/[locale]/login/page.tsx

@@ -1,18 +1,21 @@
 'use client'
 
-import { useEffect } from 'react'
-import { useRouter } from 'next/navigation'
+import { useEffect, Suspense } from 'react'
+import { useRouter, useSearchParams } from 'next/navigation'
 import { useLocale } from 'next-intl'
 import { Box, CircularProgress, Typography } from '@mui/material'
 
-export default function LoginRedirectPage() {
+function LoginRedirectContent() {
   const router = useRouter()
   const locale = useLocale()
+  const searchParams = useSearchParams()
 
   useEffect(() => {
-    // Redirect to the actual login page
-    router.replace(`/${locale}/auth/login`)
-  }, [router, locale])
+    // Preserve the redirect parameter when redirecting to the actual login page
+    const redirect = searchParams.get('redirect')
+    const redirectParam = redirect ? `?redirect=${encodeURIComponent(redirect)}` : ''
+    router.replace(`/${locale}/auth/login${redirectParam}`)
+  }, [router, locale, searchParams])
 
   return (
     <Box
@@ -29,4 +32,26 @@ export default function LoginRedirectPage() {
       </Typography>
     </Box>
   )
+}
+
+export default function LoginRedirectPage() {
+  return (
+    <Suspense fallback={
+      <Box
+        display="flex"
+        flexDirection="column"
+        alignItems="center"
+        justifyContent="center"
+        minHeight="100vh"
+        gap={2}
+      >
+        <CircularProgress />
+        <Typography variant="body2" color="text.secondary">
+          Loading...
+        </Typography>
+      </Box>
+    }>
+      <LoginRedirectContent />
+    </Suspense>
+  )
 }