fix(ai): add imageUrl field to Prisma schema and correctly route language selection inside whatsapp.ts

Dockerfile

@@ -41,7 +41,7 @@ EXPOSE 7860
 ENV PORT=7860
 
 # Force Docker cache invalidation - bump date to trigger clean rebuild
-ENV REBUILD_DATE="2026-03-01-v8-context-leak-fix"
+ENV REBUILD_DATE="2026-03-01-v9-language-and-image-fixes"
 
 # SAFETY: Default to skipping DB push to prevent schema drift.
 # Only Railway (api service) should push schema — it overrides SKIP_DB_PUSH=false in its variables.

apps/api/src/services/whatsapp.ts

@@ -201,6 +201,26 @@ export class WhatsAppService {
             }
         }
 
+        // 1.7. Language Selection (Interactive Buttons)
+        if (normalizedText === 'LANG_FR' || normalizedText === 'LANG_WO') {
+            const newLang = normalizedText === 'LANG_FR' ? 'FR' : 'WOLOF';
+            user = await prisma.user.update({
+                where: { id: user.id },
+                data: { language: newLang }
+            });
+
+            const promptText = newLang === 'FR'
+                ? "Parfait, nous allons continuer en Français ! 🇫🇷\nDans quel domaine d'activité te trouves-tu ?"
+                : "Baax na, dinanu wéy ci Wolof ! 🇸🇳\nCi ban mbir ngay yëngu ?";
+
+            await scheduleInteractiveButtons(user.id, promptText, [
+                { id: 'SEC_COMMERCE', title: newLang === 'FR' ? 'Commerce / Vente' : 'Njaay / Commerce' },
+                { id: 'SEC_AGRI', title: newLang === 'FR' ? 'Agri / Élevage' : 'Mbay / Samm' },
+                { id: 'SEC_AUTRE', title: newLang === 'FR' ? 'Autre secteur' : 'Beneen mbir' }
+            ]);
+            return;
+        }
+
         // 2. Check Pending Exercise (User Progress)
         // 2. Resolve sector LIST reply IDs → human-readable label
         const SECTOR_LABELS: Record<string, { fr: string; wo: string }> = {

packages/database/prisma/schema.prisma

@@ -75,6 +75,7 @@ model TrackDay {
   dayNumber         Float
   title             String?
   audioUrl          String?
+  imageUrl          String?
   videoUrl          String?
   videoCaption      String?
   lessonText        String?

packages/database/src/seed.ts

@@ -65,6 +65,7 @@ async function syncTrackFile(prisma: PrismaClient, filePath: string) {
             exerciseCriteria: day.exerciseCriteria || null,
             badges: day.badges || null,
             audioUrl: day.audioUrl || null,
+            imageUrl: day.imageUrl || null,
             videoUrl: day.videoUrl || null,
             videoCaption: day.videoCaption || null,
             buttonsJson: day.buttonsJson || null,