Summary

Adds a new provider for SNMP (Simple Network Management Protocol), enabling Keep to monitor any SNMP-capable infrastructure device: routers, switches, servers, firewalls, UPS, and printers.

Closes #2112

Features

• Push mode (trap receiver) — built-in UDP listener receives SNMP traps directly from devices; also accepts trap data forwarded as JSON from snmptrapd via webhook
• Pull mode (OID polling) — periodic SNMP GET/WALK on configurable targets with threshold-based alert generation
• SNMPv1, SNMPv2c, SNMPv3 — MD5/SHA authentication, DES/AES privacy
• Standard RFC trap OID mapping (coldStart, warmStart, linkDown, linkUp, authFailure)
• Vendor prefix detection (Cisco, HP, Dell, Juniper, Huawei, VMware, Net-SNMP)
• Configurable OID → severity/name overrides via JSON map
• Dependency: pysnmp-lextudio (optional, only needed for trap receiver/polling)

Files

/claim #2112