Add ban management features and update documentation

- Implement ban model, service, and router endpoints in backend
- Add ban table component and dashboard integration in frontend
- Update ban-related types and API endpoints
- Add comprehensive tests for ban service and dashboard router
- Update documentation (Features, Tasks, Architecture, Web-Design)
- Clean up old fail2ban configuration files
- Update Makefile with new commands

Docker/fail2ban-dev-config/fail2ban/jail.d/bangui-access.conf

@@ -1,20 +0,0 @@
-# ──────────────────────────────────────────────────────────────
-#  BanGUI — Simulated HTTP access scan jail
-#
-#  Watches Docker/logs/access.log (mounted at /remotelogs/bangui)
-#  for lines produced by Docker/simulate_accesses.sh.
-# ──────────────────────────────────────────────────────────────
-
-[bangui-access]
-
-enabled    = true
-filter     = bangui-access
-logpath    = /remotelogs/bangui/access.log
-backend    = polling
-maxretry   = 3
-findtime   = 120
-bantime    = 60
-banaction  = iptables-allports
-
-# Never ban localhost, the Docker bridge network, or the host machine.
-ignoreip   = 127.0.0.0/8 ::1 172.16.0.0/12