Build a rich network topology from SNMP polling data using evidence-based
confidence scoring. LLDP/CDP neighbors, MAC address tables, and ARP data
are combined to infer device links with weighted confidence merging.
- Add DeviceLink and DeviceLinkEvidence schemas for persistent topology
- Implement evidence collectors: LLDP (0.95), CDP (0.95), MAC (0.7), ARP (0.6)
- Add device role inference from sysObjectID/sysDescr patterns
- Hook topology inference into DevicePollerWorker pipeline
- Add stale link cleanup (24h mark stale, 72h delete) via NeighborCleanupWorker
- Update NetworkMapLive with "Added" vs "All Devices" tabs
- Add connected devices section to device detail page
- Add device role selector to device edit form
- Update Cytoscape.js with role-based node shapes/colors and confidence edges
Fixed production bug where visiting the edit page for a device with no
SNMP discovery data would crash with "expected boolean on left-side of
'and', got: nil" error.
The mikrotik_device?/1 function was using && operator which returns nil
when device.snmp_device is nil, instead of returning false. The template
conditional on line 455 requires a proper boolean value.
Changed from:
device.snmp_device && (...)
To:
not is_nil(device.snmp_device) and (...)
This ensures the function always returns a boolean (true/false) instead
of potentially returning nil.
Added regression test to verify the page renders correctly when a device
has no SNMP discovery data yet.
Fixes: https://app.honeybadger.io/projects/136860/faults/127120431
