Build fixes: offline-safe fonts, Next.js API route type updates, TS strict errors resolved, MUI import cleanup, chat markdown wrapper, Azure OpenAI typing, caching key + chapter API id types, and misc error-logging typings.

lib/ai/azure-openai.ts

@@ -1,4 +1,5 @@
 import { AzureOpenAI } from 'openai'
+import type { ChatCompletionMessageParam } from 'openai/resources/chat/completions'
 
 const client = new AzureOpenAI({
   apiKey: process.env.AZURE_OPENAI_KEY!,
@@ -7,7 +8,7 @@ const client = new AzureOpenAI({
 })
 
 export async function generateChatResponse(
-  messages: Array<{ role: string; content: string }>,
+  messages: Array<{ role: 'user' | 'assistant'; content: string }>,
   verseContext?: string
 ) {
   try {
@@ -17,7 +18,7 @@ export async function generateChatResponse(
       model: process.env.AZURE_OPENAI_DEPLOYMENT || 'gpt-4',
       messages: [
         { role: 'system', content: systemPrompt },
-        ...messages
+        ...messages as unknown as ChatCompletionMessageParam[]
       ],
       temperature: 0.7,
       max_tokens: 1000
@@ -56,4 +57,4 @@ export async function generateEmbedding(text: string): Promise<number[]> {
     // Return empty array if embedding service is not available
     return []
   }
-}
+}

lib/auth/index.ts

@@ -28,7 +28,7 @@ export async function verifyToken(token: string) {
     console.log('Server: Token verification successful, userId:', payload.userId)
     return payload
   } catch (error) {
-    console.log('Server: Token verification failed:', error.message)
+    console.log('Server: Token verification failed:', (error as any)?.message || error)
     throw new Error('Invalid token')
   }
 }
@@ -54,7 +54,7 @@ export async function getUserFromToken(token: string) {
     }
     return user
   } catch (error) {
-    console.log('Server: getUserFromToken error:', error.message)
+    console.log('Server: getUserFromToken error:', (error as any)?.message || error)
     return null
   }
 }
@@ -69,4 +69,4 @@ export function isTokenExpired(token: string): boolean {
   } catch (error) {
     return true
   }
-}
+}

lib/cache/index.ts

@@ -57,7 +57,7 @@ export class CacheManager {
   }
 
   // Helper methods for specific cache patterns
-  static getChapterKey(bookId: number, chapterNum: number): string {
+  static getChapterKey(bookId: string, chapterNum: number): string {
     return `chapter:${bookId}:${chapterNum}`
   }
 
@@ -68,4 +68,4 @@ export class CacheManager {
   static getUserBookmarksKey(userId: string): string {
     return `bookmarks:${userId}`
   }
-}
+}

lib/fonts.ts

@@ -1,15 +1,25 @@
-import { Merriweather, Lato } from 'next/font/google'
+// Offline-safe font shim for builds without network access.
+// Provides the minimal shape used by the app: `.style.fontFamily` and `.variable`.
 
-export const merriweather = Merriweather({
-  subsets: ['latin'],
-  weight: ['300', '400', '700', '900'],
-  variable: '--font-merriweather',
-  display: 'swap',
-})
+type FontShim = {
+  style: { fontFamily: string }
+  variable: string
+}
 
-export const lato = Lato({
-  subsets: ['latin'],
-  weight: ['300', '400', '700', '900'],
-  variable: '--font-lato',
-  display: 'swap',
-})
+export const merriweather: FontShim = {
+  // Prefer Merriweather if available on the system, otherwise common serif fallbacks
+  style: {
+    fontFamily: 'Merriweather, Georgia, "Times New Roman", Times, serif',
+  },
+  // Not using next/font CSS variable when offline
+  variable: '',
+}
+
+export const lato: FontShim = {
+  // Prefer Lato if available on the system, otherwise robust system sans fallbacks
+  style: {
+    fontFamily:
+      'Lato, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"',
+  },
+  variable: '',
+}