Complete Task 8.2: NetDisco deployed and operational

- Database: netdisco_db in postgresql17 (schema v96)
- Containers: netdisco-web (port 5000), netdisco-backend
- All 3 MikroTik devices discovered via SNMP
- MAC/ARP data collection working
- Web UI: http://192.168.31.2:5000

docs/07-CHANGELOG.md

@@ -1,4 +1,33 @@
 # Infrastructure Changelog
+## 2026-01-19 - NetDisco Deployment
+
+### Task 8.2: Deploy NetDisco - COMPLETED
+
+**Database Setup:**
+- [DB] Created netdisco_db database in postgresql17
+- [DB] Created netdisco_user with password
+- [DB] Database schema initialized (96 migrations applied)
+
+**Container Deployment:**
+- [SERVICE] netdisco-web: Web UI on port 5000
+- [SERVICE] netdisco-backend: SNMP polling daemon
+- [CONFIG] deployment.yml configured with SNMP communities
+- [CONFIG] Discover schedule: Every 2 hours
+- [CONFIG] MAC/ARP polling: Hourly
+
+**Device Discovery:**
+- [DISCOVER] 192.168.31.1 (hAP ax³) - Successful
+- [DISCOVER] 192.168.31.6 (cAP ac) - Successful
+- [DISCOVER] 192.168.31.9 (CSS326) - Successful
+- [DATA] MAC address tables collected
+- [DATA] ARP tables collected
+
+**Access:**
+- Web UI: http://192.168.31.2:5000
+- Initial auth: no_auth=true (unauthenticated admin)
+
+---
+
 ## 2026-01-19 - SNMP Configuration for NetDisco
 
 ### Task 8.1: Enable SNMP on MikroTik Devices - COMPLETED