NetMap v1.2.9

Added

• LLDP Neighbours tool: discover adjacent devices on switch ports via SNMP LLDP-MIB. Results are matched
  to inventory by MAC, IP, or hostname — unmatched neighbours are flagged, and matched pairs get a one-click
  topology link button.
• OS field on devices: store and edit the operating system string (e.g. "Ubuntu 24.04", "Cisco IOS").
  SNMP enrichment now suggests sysDescr as OS and sysName as hostname when those fields are blank.
  (suggested by @WindowsStar in #7)
• IPAM range reservations: the Reserve IP dialog now accepts a range (e.g. 192.168.1.10-35), shows a
  live count preview, and creates all IPs in one submit. MAC field is hidden in range mode.
• Port ranges and comma-separated ports in service checks: enter 443, 67,68, 8080-8090, or any
• Service check device picker: searchable dropdown in the "Specific device" form — no need to pre-click
  a device in the table first. (suggested by @WindowsStar in #6)
• Last poll relative time: the topbar "Last poll" indicator now shows a live "(X min ago)" counter
  updated every 30 seconds.
• Created timestamp in device details (read-only). (suggested by @WindowsStar in #7)

Changed

• Port Monitoring modal (formerly "Service Checks"): renamed, widened, and redesigned to a two-column
  layout with the form on the left and active checks on the right. Device picker supports multi-selection with
  live search.
• Admin Credentials tab renamed to "SNMP Profiles" to better reflect what it manages.
• Automation tab change observations now use the card-row layout matching the discovery modal style.
• Login screen now shows the app favicon in place of the generic network icon, on both the branding
  panel and form header.
• Dark mode is now the default for new installations and users who haven't set a preference.
• IPAM reserved colour changed from purple to deep teal; DHCP range pill is muted in dark mode; free-cell
  hover colour updated to device green.

Fixed

• Public IP devices were always shown as offline, the monitor now probes all registered devices regardless
  of the public-targets gate. (reported by @WindowsStar in #6)
• Port checks now run in parallel (up to 12 concurrent connections) instead of sequentially, preventing long
  monitor cycles when many devices have port targets.
• Monitoring "X minutes ago" timestamps were offset for non-UTC users due to naive datetime handling, fixed
  by normalizing all checked_at fields to UTC. (reported by @WindowsStar in #6)
• Monitoring panel height no longer has a fixed 520 px cap.
• Monitoring table column layout and spacing cleaned up.