fix(showcase): block financial data from AI Q&A, fix FAB overflow, fix presenter slide mapping

AI Q&A: fetch is_showcase from DB; showcase sessions receive no financial/funding
context and have an explicit LLM guard refusing to discuss investment details.
FAQ context and financial slide IDs stripped from system prompt.

FAB: flex layout so Fullscreen button is always visible regardless of panel height.

Presenter: pass activeSlideOrder to usePresenterMode so buildSlideAudioPlan maps
slideIdx → slideId from the filtered list, not the full SLIDE_ORDER. Progress
calculation also filters to active scripts only.

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

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

@@ -1,7 +1,7 @@
 import { NextRequest, NextResponse } from 'next/server'
 import pool from '@/lib/db'
 import { getSessionFromCookie } from '@/lib/auth'
-import { SLIDE_ORDER } from '@/lib/slide-order'
+import { SLIDE_ORDER, SHOWCASE_HIDDEN_SLIDES } 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'
@@ -115,6 +115,19 @@ KONKRETES BEISPIEL einer vollständigen Antwort:
 
 WICHTIG: Vergiss NIEMALS die Folgefragen! Sie sind PFLICHT.`
 
+// Prepended to system content for showcase (customer demo) sessions
+const SHOWCASE_GUARD = `## MODUS: PRODUKT-DEMO (KEIN INVESTOREN-PITCH)
+Du bist im Showcase-Modus. Du beantwortest Fragen potenzieller Kunden über das Produkt — NICHT über Investitionsdetails.
+
+ABSOLUTES VERBOT — niemals erwähnen oder beantworten:
+- Finanzierungssumme, Investitionsbedarf, The Ask, Bewertung, Equity, Cap Table
+- Finanzprognosen, Umsatzziele, Cashflow, Liquidität, Burn Rate
+- Wandeldarlehen, SAFE, Gesellschafteranteile oder Kapitalstruktur
+- Irgendwelche Zahlen aus dem Finanzplan oder Finanzierungsrunden
+
+Wenn danach gefragt wird: "Für geschäftliche Details wenden Sie sich gerne direkt an unser Team."
+Fokus: Produkt-Features, Compliance-Module, technische Architektur, Kundennutzen, Markt, Team.`
+
 async function loadFpLiquiditaetSummary(scenarioName: string): Promise<string> {
   try {
     const { rows } = await pool.query(
@@ -199,7 +212,7 @@ function extractMeta(
   }
 }
 
-async function loadPitchContext(versionId?: string | null): Promise<PitchContextResult> {
+async function loadPitchContext(versionId?: string | null, isShowcase = false): Promise<PitchContextResult> {
   try {
     // Version-specific data path
     if (versionId) {
@@ -225,11 +238,11 @@ async function loadPitchContext(versionId?: string | null): Promise<PitchContext
 
       const versionName = vNameRes.rows[0]?.name ?? ''
       const meta = extractMeta(versionName, fmScenarios, funding, financials)
-      const fpSummary = meta.scenarioName ? await loadFpLiquiditaetSummary(meta.scenarioName) : ''
+      const fpSummary = (!isShowcase && meta.scenarioName) ? await loadFpLiquiditaetSummary(meta.scenarioName) : ''
 
       return {
-        contextString: buildContextString(company, team, financials, market, products, funding, features, fpSummary),
-        meta,
+        contextString: buildContextString(company, team, financials, market, products, funding, features, fpSummary, isShowcase),
+        meta: isShowcase ? { ...DEFAULT_META, versionName } : meta,
       }
     }
 
@@ -249,9 +262,9 @@ async function loadPitchContext(versionId?: string | null): Promise<PitchContext
       return {
         contextString: buildContextString(
           company.rows[0], team.rows, financials.rows, market.rows,
-          products.rows, funding.rows[0], features.rows, ''
+          products.rows, funding.rows[0], features.rows, '', isShowcase
         ),
-        meta,
+        meta: isShowcase ? DEFAULT_META : meta,
       }
     } finally {
       client.release()
@@ -264,8 +277,19 @@ async function loadPitchContext(versionId?: string | null): Promise<PitchContext
 
 function buildContextString(
   company: unknown, team: unknown, financials: unknown, market: unknown,
-  products: unknown, funding: unknown, features: unknown, fpSummary: string
+  products: unknown, funding: unknown, features: unknown, fpSummary: string,
+  omitFinancials = false
 ): string {
+  const finSection = omitFinancials ? '' : `
+### Finanzprognosen (5-Jahres-Plan)
+${JSON.stringify(financials, null, 2)}
+`
+  const fundSection = omitFinancials ? '' : `
+### Finanzierung
+${JSON.stringify(funding, null, 2)}
+`
+  const fpSection = omitFinancials ? '' : (fpSummary ? '\n' + fpSummary : '')
+
   return `
 ## Unternehmensdaten (für präzise Antworten nutzen)
 
@@ -274,22 +298,16 @@ ${JSON.stringify(company, null, 2)}
 
 ### Team
 ${JSON.stringify(team, null, 2)}
-
-### Finanzprognosen (5-Jahres-Plan)
-${JSON.stringify(financials, null, 2)}
-
+${finSection}
 ### Markt (TAM/SAM/SOM)
 ${JSON.stringify(market, null, 2)}
 
 ### Produkte
 ${JSON.stringify(products, null, 2)}
-
-### Finanzierung
-${JSON.stringify(funding, null, 2)}
-
+${fundSection}
 ### Differenzierende Features (nur bei ComplAI)
 ${JSON.stringify(features, null, 2)}
-${fpSummary ? '\n' + fpSummary : ''}
+${fpSection}
 `
 }
 
@@ -303,22 +321,24 @@ export async function POST(request: NextRequest) {
       return NextResponse.json({ error: 'Message is required' }, { status: 400 })
     }
 
-    // Resolve investor's assigned version so the AI sees the correct scenario data
+    // Resolve investor's assigned version and showcase flag
     let versionId: string | null = null
+    let isShowcase = false
     try {
       const session = await getSessionFromCookie()
       if (session?.sub) {
         const inv = await pool.query(
-          `SELECT assigned_version_id FROM pitch_investors WHERE id = $1`,
+          `SELECT assigned_version_id, is_showcase FROM pitch_investors WHERE id = $1`,
           [session.sub]
         )
         versionId = inv.rows[0]?.assigned_version_id ?? null
+        isShowcase = inv.rows[0]?.is_showcase === true
       }
     } catch {
       // Non-fatal: fall back to base tables
     }
 
-    const { contextString, meta } = await loadPitchContext(versionId)
+    const { contextString, meta } = await loadPitchContext(versionId, isShowcase)
 
     // Build dynamic VERSIONS-ISOLATION and Kernbotschaft #9 from actual version data
     const fmt = (n: number) => n.toLocaleString('de-DE')
@@ -340,40 +360,51 @@ export async function POST(request: NextRequest) {
 
     const dynamicFinanzplanKernbotschaft = `9. Finanzplan: "Gründung August 2026. Pre-Seed über ${fundingStr}. ${customersStr} und ${revM} Umsatz bis 2030. ${employeesStr}."`
 
-    let systemContent = SYSTEM_PROMPT_PART1
-      + '\n' + dynamicFinanzplanKernbotschaft
-      + SYSTEM_PROMPT_PART2
-      + '\n\n' + dynamicVersionIsolation
-      + SYSTEM_PROMPT_PART3
+    let systemContent: string
+    if (isShowcase) {
+      // Showcase: product-only context, no financial details anywhere
+      systemContent = SHOWCASE_GUARD
+        + '\n\n' + SYSTEM_PROMPT_PART1
+        + SYSTEM_PROMPT_PART2
+        + SYSTEM_PROMPT_PART3
+    } else {
+      systemContent = SYSTEM_PROMPT_PART1
+        + '\n' + dynamicFinanzplanKernbotschaft
+        + SYSTEM_PROMPT_PART2
+        + '\n\n' + dynamicVersionIsolation
+        + SYSTEM_PROMPT_PART3
+    }
 
     if (contextString) {
       systemContent += '\n' + contextString
     }
 
-    // FAQ context: relevant pre-researched answers as basis for the LLM
-    // IMPORTANT: FAQ entries contain hardcoded numbers written for specific scenarios.
-    // They are hints only — the version-specific Unternehmensdaten above always take precedence.
-    if (faqContext && typeof faqContext === 'string') {
+    // FAQ context — skip for showcase (may contain financial hints)
+    if (!isShowcase && faqContext && typeof faqContext === 'string') {
       systemContent += '\n' + faqContext
       systemContent += '\n\n## Versions-Datenvorrang (ABSOLUT VERBINDLICH)\nWenn die vorrecherchierten Antworten oben Zahlen, Beträge oder Details nennen, die von den "Unternehmensdaten" oder dem "Finanzplan-Liquidität" weiter oben abweichen, haben die Unternehmensdaten IMMER Vorrang. Die FAQ-Antworten sind allgemein formuliert und könnten veraltete oder szenario-fremde Zahlen enthalten. Nutze sie nur für Struktur und Formulierung — die konkreten Zahlen kommen ausschließlich aus den Unternehmensdaten dieses Investors.'
     }
 
-    // Slide context for contextual awareness
+    // Slide context for contextual awareness — filter hidden slides for showcase
+    const visibleSlideOrder = isShowcase
+      ? SLIDE_ORDER.filter(id => !SHOWCASE_HIDDEN_SLIDES.has(id))
+      : SLIDE_ORDER
+
     if (slideContext) {
       const visited: number[] = slideContext.visitedSlides || []
       const currentSlideId = slideContext.currentSlide
       const currentSlideName = SLIDE_DISPLAY_NAMES[currentSlideId]?.[lang] || currentSlideId
-      const notYetSeen = SLIDE_ORDER
+      const notYetSeen = visibleSlideOrder
         .map((id, idx) => ({ id, idx, name: SLIDE_DISPLAY_NAMES[id]?.[lang] || id }))
         .filter(s => !visited.includes(s.idx))
         .map(s => `${s.idx + 1}. ${s.name}`)
 
       systemContent += `\n\n## Slide-Kontext (WICHTIG für kontextuelle Antworten)
-- Aktuelle Slide: "${currentSlideName}" (Nr. ${slideContext.currentIndex + 1} von ${slideCount})
-- Bereits besuchte Slides: ${visited.map((i: number) => SLIDE_DISPLAY_NAMES[SLIDE_ORDER[i]]?.[lang] || SLIDE_ORDER[i]).filter(Boolean).join(', ')}
+- Aktuelle Slide: "${currentSlideName}" (Nr. ${slideContext.currentIndex + 1} von ${visibleSlideOrder.length})
+- Bereits besuchte Slides: ${visited.map((i: number) => SLIDE_DISPLAY_NAMES[visibleSlideOrder[i]]?.[lang] || visibleSlideOrder[i]).filter(Boolean).join(', ')}
 - Noch nicht gesehene Slides: ${notYetSeen.join(', ')}
-- Ist Erstbesuch: ${visited.length <= 1 ? 'JA — Investor hat gerade erst den Pitch geöffnet' : 'Nein'}
-- Verfügbare Slide-IDs für [GOTO:id]: ${SLIDE_ORDER.join(', ')}
+- Ist Erstbesuch: ${visited.length <= 1 ? 'JA — Besucher hat gerade erst die Präsentation geöffnet' : 'Nein'}
+- Verfügbare Slide-IDs für [GOTO:id]: ${visibleSlideOrder.join(', ')}
 `
     }
 

pitch-deck/components/NavigationFAB.tsx

@@ -76,12 +76,12 @@ export default function NavigationFAB({
             animate={{ opacity: 1, scale: 1, y: 0 }}
             exit={{ opacity: 0, scale: 0.9, y: 20 }}
             transition={{ duration: 0.2 }}
-            className="w-[300px] max-h-[80vh] rounded-2xl overflow-hidden
+            className="w-[300px] max-h-[80vh] flex flex-col rounded-2xl overflow-hidden
               bg-black/80 backdrop-blur-xl border border-white/10
               shadow-2xl shadow-black/50"
           >
             {/* Header */}
-            <div className="flex items-center justify-between px-4 py-3 border-b border-white/10">
+            <div className="shrink-0 flex items-center justify-between px-4 py-3 border-b border-white/10">
               <span className="text-sm font-semibold text-white">{i.nav.slides}</span>
               <button
                 onClick={() => setIsOpen(false)}
@@ -93,7 +93,7 @@ export default function NavigationFAB({
             </div>
 
             {/* Slide List */}
-            <div className="overflow-y-auto max-h-[55vh] py-2">
+            <div className="flex-1 overflow-y-auto py-2">
               {activeSlideNames.map((name, idx) => {
                 const isActive = idx === currentIndex
                 const isVisited = visitedSlides.has(idx)
@@ -134,7 +134,7 @@ export default function NavigationFAB({
             </div>
 
             {/* Footer */}
-            <div className="border-t border-white/10 px-4 py-3 space-y-2">
+            <div className="shrink-0 border-t border-white/10 px-4 py-3 space-y-2">
               {/* Language Toggle */}
               <button
                 onClick={onToggleLanguage}

pitch-deck/components/PitchDeck.tsx

@@ -105,6 +105,7 @@ export default function PitchDeck({ lang, onToggleLanguage, investor, onLogout,
     currentSlide: nav.currentIndex,
     totalSlides: nav.totalSlides,
     language: lang,
+    slideOrder: activeSlideOrder,
   })
 
   // Audit tracking

pitch-deck/lib/hooks/usePresenterMode.ts

@@ -5,6 +5,7 @@ import { Language } from '../types'
 import { PresenterState, SlideScript } from '../presenter/types'
 import { PRESENTER_SCRIPT } from '../presenter/presenter-script'
 import { SLIDE_ORDER } from './useSlideNavigation'
+import { SlideId } from '../types'
 
 interface UsePresenterModeConfig {
   goToSlide: (index: number) => void
@@ -12,6 +13,7 @@ interface UsePresenterModeConfig {
   totalSlides: number
   language: Language
   ttsEnabled?: boolean
+  slideOrder?: SlideId[]
 }
 
 interface UsePresenterModeReturn {
@@ -57,8 +59,8 @@ interface SlideAudioPlan {
   segments: AudioSegment[]
 }
 
-function buildSlideAudioPlan(slideIdx: number, lang: Language): SlideAudioPlan | null {
-  const slideId = SLIDE_ORDER[slideIdx]
+function buildSlideAudioPlan(slideIdx: number, lang: Language, activeSlideOrder: SlideId[]): SlideAudioPlan | null {
+  const slideId = activeSlideOrder[slideIdx]
   const script = PRESENTER_SCRIPT.find(s => s.slideId === slideId)
   if (!script || script.paragraphs.length === 0) return null
 
@@ -121,7 +123,9 @@ export function usePresenterMode({
   totalSlides,
   language,
   ttsEnabled: initialTtsEnabled = true,
+  slideOrder: slideOrderProp,
 }: UsePresenterModeConfig): UsePresenterModeReturn {
+  const activeSlideOrder = slideOrderProp ?? SLIDE_ORDER
   const [state, setState] = useState<PresenterState>('idle')
   const [currentParagraph, setCurrentParagraph] = useState(0)
   const [displayText, setDisplayText] = useState('')
@@ -193,7 +197,7 @@ export function usePresenterMode({
     playSlideRef.current = async (slideIdx: number) => {
       if (stateRef.current !== 'presenting') return
 
-      const plan = buildSlideAudioPlan(slideIdx, language)
+      const plan = buildSlideAudioPlan(slideIdx, language, activeSlideOrder)
       if (!plan) {
         // No script for this slide — skip to next
         if (slideIdx < totalSlides - 1) {
@@ -216,7 +220,7 @@ export function usePresenterMode({
 
       // Pre-fetch next slide's audio in background
       if (slideIdx < totalSlides - 1) {
-        const nextPlan = buildSlideAudioPlan(slideIdx + 1, language)
+        const nextPlan = buildSlideAudioPlan(slideIdx + 1, language, activeSlideOrder)
         if (nextPlan) fetchAudio(nextPlan.fullText, language).catch(() => {})
       }
 
@@ -329,7 +333,7 @@ export function usePresenterMode({
         setIsSpeaking(false)
       }
     }
-  }, [language, totalSlides, goToSlide, ttsAvailable, ttsEnabled])
+  }, [language, totalSlides, goToSlide, ttsAvailable, ttsEnabled, activeSlideOrder])
 
   const start = useCallback(() => {
     unlockAudio()
@@ -410,14 +414,18 @@ export function usePresenterMode({
     }
   }, [unlockAudio, start, stop])
 
-  // Calculate overall progress
+  // Calculate overall progress against the active slide order's scripts
   const progress = (() => {
     if (state === 'idle') return 0
-    const totalScripts = PRESENTER_SCRIPT.length
-    const currentScriptIdx = PRESENTER_SCRIPT.findIndex(s => s.slideId === SLIDE_ORDER[currentSlide])
+    const currentSlideId = activeSlideOrder[currentSlide]
+    const activeScripts = activeSlideOrder
+      .map(id => PRESENTER_SCRIPT.find(s => s.slideId === id))
+      .filter(Boolean) as typeof PRESENTER_SCRIPT
+    const totalScripts = activeScripts.length || 1
+    const currentScriptIdx = activeScripts.findIndex(s => s.slideId === currentSlideId)
     if (currentScriptIdx < 0) return (currentSlide / totalSlides) * 100
 
-    const script = PRESENTER_SCRIPT[currentScriptIdx]
+    const script = activeScripts[currentScriptIdx]
     const slideProgress = script.paragraphs.length > 0
       ? currentParagraph / script.paragraphs.length
       : 0