feat: add comprehensive MikroTik wireless sensor discovery
Implements all 11 wireless sensor types for MikroTik RouterOS devices
to achieve parity with LibreNMS sensor discovery.
TIER 4 CRITICAL - MikroTik Wireless Monitoring Complete
## Sensor Types Implemented
### AP Sensors (mtxrWlApTable)
- Wireless clients (station count)
- CCQ (Connection Quality) with NV2 handling
- Frequency (MHz)
- Noise floor (dBm)
- TX/RX rate (bps)
### Station Sensors (mtxrWlStatTable)
- TX/RX CCQ (separate sensors)
- Frequency (MHz)
- TX/RX rate (bps)
### 60GHz Sensors (mtxrWl60GTable)
- Frequency (MHz)
- RSSI (dBm)
- Quality (%)
- PHY rate (bps with 1M divisor)
### 60GHz Station Sensors (mtxrWl60GStaTable)
- Distance (km with 100k divisor)
### LTE Modem Sensors (mtxrLTEModemTable)
- RSRQ (dB) - Reference Signal Received Quality
- RSRP (dBm) - Reference Signal Received Power
- SINR (dB) - Signal-to-Interference-plus-Noise Ratio
## Implementation Details
**Pattern**: Similar to UniFi frequency conversion - walks SNMP tables,
groups by index, builds sensor maps dynamically.
**LibreNMS Parity**:
- Matches exact OIDs from LibreNMS/OS/Routeros.php
- Implements same skip logic (CCQ when clients>0 && CCQ=0)
- Uses same frequency label extraction (first char + "G")
- Applies same divisors (60GHz rate: 1M, distance: 100k)
**Key Features**:
- Safe integer conversion (handles both string and int from SNMP)
- Frequency label extraction (2437 → "2G", 5180 → "5G")
- Smart sensor skipping (zero values, empty CCQ, etc.)
- Comprehensive test coverage (13 test cases)
## Files Modified
- lib/towerops/snmp/profiles/vendors/mikrotik.ex
- Added discover_wireless_sensors/1 implementation
- Added 5 helper functions for different MIB tables
- Added group_by_index/1, freq_to_label/2, to_integer/1
- test/towerops/snmp/profiles/vendors/mikrotik_test.exs
- Added 8 comprehensive test cases covering all sensor types
- Tests skip logic, data handling, empty responses
## Testing
All 13 MikroTik vendor module tests pass.
All 1832 SNMP profile tests pass.
## Coverage Impact
MikroTik RouterOS wireless coverage: 0% → 100%
- Now discovers all 11 sensor types LibreNMS discovers
- Matches LibreNMS sensor OIDs, descriptions, divisors exactly
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Graham McIntire
78b02936e8