fix(ai): fully wipe BusinessProfile and Response history on INSCRIPTION to prevent AI context leaks

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-v7-ai-coach-expert"
+ENV REBUILD_DATE="2026-03-01-v8-context-leak-fix"
 
 # 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

@@ -72,6 +72,9 @@ export class WhatsAppService {
         if (normalizedText === 'INSCRIPTION') {
             await prisma.enrollment.deleteMany({ where: { userId: user.id } });
             await prisma.userProgress.deleteMany({ where: { userId: user.id } });
+            await prisma.response.deleteMany({ where: { userId: user.id } });
+            // Also explicitly clear business AI profile to prevent context leak on restart
+            await (prisma as any).businessProfile.deleteMany({ where: { userId: user.id } });
             user = await prisma.user.update({
                 where: { id: user.id },
                 data: { city: null, activity: null }