fix(chat): extract SLIDE_ORDER to shared module for server-side import

useSlideNavigation.ts has 'use client' — server API routes can't import
from it. Move SLIDE_ORDER to lib/slide-order.ts (no 'use client') and
re-export from useSlideNavigation for backwards compat.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pitch-deck/app/api/chat/route.ts

@@ -1,6 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server'
 import pool from '@/lib/db'
-import { SLIDE_ORDER } from '@/lib/hooks/useSlideNavigation'
+import { SLIDE_ORDER } from '@/lib/slide-order'
 
 const LITELLM_URL = process.env.LITELLM_URL || 'https://llm-dev.meghsakha.com'
 const LITELLM_MODEL = process.env.LITELLM_MODEL || 'gpt-oss-120b'

pitch-deck/lib/hooks/useSlideNavigation.ts

@@ -1,32 +1,10 @@
 'use client'
 
 import { useState, useCallback } from 'react'
-import { SlideId } from '../types'
+import { SLIDE_ORDER, TOTAL_SLIDES } from '../slide-order'
 
-export const SLIDE_ORDER: SlideId[] = [
+// Re-export for backwards compatibility
-  'intro-presenter',
+export { SLIDE_ORDER, TOTAL_SLIDES }
-  'cover',
-  'problem',
-  'solution',
-  'product',
-  'how-it-works',
-  'market',
-  'business-model',
-  'traction',
-  'competition',
-  'team',
-  'financials',
-  'the-ask',
-  'ai-qa',
-  'annex-assumptions',
-  'annex-architecture',
-  'annex-gtm',
-  'annex-regulatory',
-  'annex-engineering',
-  'annex-aipipeline',
-]
-
-export const TOTAL_SLIDES = SLIDE_ORDER.length
 
 export function useSlideNavigation() {
   const [currentIndex, setCurrentIndex] = useState(0)

pitch-deck/lib/slide-order.ts

@@ -0,0 +1,26 @@
+import { SlideId } from './types'
+
+export const SLIDE_ORDER: SlideId[] = [
+  'intro-presenter',
+  'cover',
+  'problem',
+  'solution',
+  'product',
+  'how-it-works',
+  'market',
+  'business-model',
+  'traction',
+  'competition',
+  'team',
+  'financials',
+  'the-ask',
+  'ai-qa',
+  'annex-assumptions',
+  'annex-architecture',
+  'annex-gtm',
+  'annex-regulatory',
+  'annex-engineering',
+  'annex-aipipeline',
+]
+
+export const TOTAL_SLIDES = SLIDE_ORDER.length