Enhanced AgentChannel logging to track device IDs across job list updates.
Added tests verifying server correctly excludes deleted devices from job lists.
Root cause: Bug is in Go agent (appends jobs without clearing), not Phoenix server.
- use 64-bit HC counters (ifHCInOctets/ifHCOutOctets) instead of 32-bit
counters that wrap every ~34s on gigabit links
- fix negative integer parsing in replay adapter so sensor scale values
like -3 produce correct divisors (1000) instead of falling through to 1
- replace walking entire Cisco enterprise tree with targeted subtrees to
avoid timeouts; add Juniper, HP/H3C, Fortinet, Cambium vendor OIDs
- add missing discovery OIDs: ENTITY-STATE-MIB, HOST-RESOURCES-MIB
tables, and UCD-SNMP-MIB Linux CPU stats fallback
newly discovered devices sat idle with no metric data until the
next scheduling cycle. now the channel sends a poll job (and ping
job if monitoring enabled) right after discovery succeeds, using
send(self(), ...) so discovery DB writes commit first.
also reduces k8s replicas from 3 to 2.
