feat(ui): navigation reorganization — consolidate duplicate pages, grouped sidebar (v0.16.4-beta)

UI/UX consolidation pass to reduce nav sprawl (~24 destinations -> ~17):

- Merge Router Settings + Switch Settings (copy-paste duplicates) into one
  Network Services > Discovery & SNMP page with an All/Routers/Switches
  scope selector; LLDP + SNMP status tables merge both fleets with a
  type pill, apply fans out per scope
- Retire Routers/Switches overview pages; the Devices type filter now
  lives in the URL (?type=AP|SW|RTR) and legacy routes redirect to the
  pre-filtered view. Wireless overview kept (RF Health / Rogue APs are
  unique content)
- Fold Wireless Clients into Clients: All/Wired/Wireless segmented
  filter (URL-synced); wireless view swaps the Type column for SSID +
  signal quality columns
- Regroup sidebar into Monitor / Network / Services / Operations
  sections; Devices and Wireless are collapsible groups (auto-open on
  active section, manual collapse always wins); Wireless group renders
  only when wireless APs exist
- Rename Syslog -> Logging with a cross-link to live Events; group the
  Settings tabs into Platform / My Account / Fleet sections
- Legacy routes (/routers, /switches, /routers/settings,
  /switches/settings, /wireless/clients) redirect so bookmarks keep
  working

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

README.md

@@ -2,7 +2,7 @@
 
 A self-hosted, full-stack network management platform for MikroTik devices. Monitor, configure, and manage your entire MikroTik infrastructure — routers, switches, and wireless access points — from a single web interface.
 
-![Version](https://img.shields.io/badge/version-0.16.3_Beta-blue)
+![Version](https://img.shields.io/badge/version-0.16.4_Beta-blue)
 ![License](https://img.shields.io/badge/license-AGPLv3-blue)
 ![Docker](https://img.shields.io/badge/docker-compose-2496ED?logo=docker&logoColor=white)
 ![TypeScript](https://img.shields.io/badge/TypeScript-5.3-3178C6?logo=typescript&logoColor=white)
@@ -178,8 +178,9 @@ Each service supports multi-device management with conflict detection:
 | **DNS** | Upstream servers, static records (A/AAAA/CNAME/MX/NS/PTR/TXT/SRV), cache flush, DoH |
 | **NTP** | Server (broadcast/manycast), client (unicast/multicast), sync status |
 | **WireGuard** | Interface management, peer configuration, public key display, RX/TX stats |
-| **Syslog** | Logging actions (remote/memory/disk/echo) and routing rules; single-device or push-to-all with per-entry coverage; enable/disable rules |
+| **Logging** | Syslog actions (remote/memory/disk/echo) and routing rules; single-device or push-to-all with per-entry coverage; enable/disable rules |
 | **NetFlow** | One-toggle Traffic Flow (NetFlow v9/IPFIX) export per device, pointed at the built-in collector; live export status per device |
+| **Discovery & SNMP** | Fleet-wide LLDP enable/disable and SNMP v1/v2c/v3 configuration with per-device status tables, scoped to all devices, routers only, or switches only |
 
 ### Traffic Analytics (NetFlow)
 - **Built-in NetFlow/IPFIX collector** — receives Traffic Flow exports from your routers on UDP 2055 (no external tools needed); decoder supports both NetFlow v9 and IPFIX