Phase 4 + M5: Low-priority fixes and frontend component integration

M5: TagBadge integrated into ContactDetail (replaces plain Badge)
M5: EntityHistoryPanel integrated into ContactDetail (timeline section)

L1: Replace document.write() with Blob URL in print.ts (XSS-safe)
L2: AI UI Control feedback storage capped at 100 entries (FIFO eviction)
L3: Backup & Restore documentation added to DEPLOY.md

Verified: Backend import OK, TypeScript 0 errors

DEPLOY.md

@@ -119,3 +119,54 @@ python scripts/deploy.py --migrate-only
 ```bash
 python scripts/deploy.py --skip-build  # startet Worker automatisch
 ```
+
+## Backup & Restore
+
+### Backup (PostgreSQL)
+
+```bash
+# Full DB backup (run on the host or via docker exec)
+docker exec crm-postgres pg_dump -U crm_user -Fc crm_db > backup_$(date +%Y%m%d_%H%M%S).dump
+
+# Backup mit Custom-Format (komprimiert, parallel restore-fähig)
+docker exec crm-postgres pg_dump -U crm_user -Fc -Z 9 crm_db > backup_$(date +%Y%m%d).dump
+```
+
+### Backup (Redis — Sessions/Queues)
+
+```bash
+# Redis RDB Snapshot
+docker exec crm-redis redis-cli -a "$REDIS_PASSWORD" SAVE
+docker cp crm-redis:/data/dump.rdb redis_backup_$(date +%Y%m%d).rdb
+```
+
+### Backup (File Storage)
+
+```bash
+# Local storage volume
+docker run --rm -v leocrm-fix_storage:/data -v $(pwd):/backup alpine \
+  tar czf /backup/storage_$(date +%Y%m%d).tar.gz /data
+```
+
+### Restore (PostgreSQL)
+
+```bash
+# Stop app containers
+docker compose stop crm-app crm-worker
+
+# Restore DB
+docker exec -i crm-postgres pg_restore -U crm_user -d crm_db --clean < backup_20260726.dump
+
+# Restart app
+docker compose start crm-app crm-worker
+```
+
+### Automatisierte Backups (Cron)
+
+```bash
+# /etc/cron.d/leocrm-backup
+0 2 * * * root docker exec crm-postgres pg_dump -U crm_user -Fc crm_db > /backups/leocrm_$(date +\%Y\%m\%d).dump
+0 3 * * * root find /backups -name 'leocrm_*.dump' -mtime +30 -delete
+```
+
+**Empfehlung:** Tägliche DB-Backups, 30 Tage Aufbewahrung. Storage-Backup wöchentlich.