Implement Phase 1.2: Database with encryption at rest and core infrastructure

Co-authored-by: southseact-3d <217551146+southseact-3d@users.noreply.github.com>

.env.example

@@ -57,6 +57,19 @@ ADMIN_USER=
 ADMIN_PASSWORD=
 SESSION_SECRET=
 
+# Database Configuration (Phase 1.2 & 1.3)
+# Set USE_JSON_DATABASE=1 to use legacy JSON files (for rollback)
+USE_JSON_DATABASE=
+DATABASE_PATH=./.data/shopify_ai.db
+DATABASE_ENCRYPTION_KEY=
+DATABASE_BACKUP_ENABLED=1
+DATABASE_WAL_MODE=1
+
+# JWT Token Configuration
+JWT_SECRET=
+JWT_ACCESS_TOKEN_TTL=900
+JWT_REFRESH_TOKEN_TTL=604800
+
 # Email (SMTP)
 SMTP_HOST=
 SMTP_PORT=587