deployment setup

docs/TODO.md

@@ -101,11 +101,12 @@
 
 ## Deployment
 
-- [ ] **Kamal configuration**
-- [ ] **Production environment** setup
-- [ ] **SSL certificate** configuration
+- [x] **Kamal configuration** (see docs/DEPLOYMENT.md)
+- [x] **Production environment** setup (automated via Kamal)
+- [x] **SSL certificate** configuration (Let's Encrypt via Kamal proxy)
+- [x] **Backup automation** (documented: manual and cron strategies)
 - [ ] **Monitoring** (error tracking, performance monitoring)
-- [ ] **Backup automation** (Litestream to S3 or similar)
+- [ ] **Litestream setup** (optional: SQLite replication to S3)
 
 ## Future Considerations