feat(monitoring+events): add connz filtering, event payloads, and message trace context (E12+E13+E14)

- Add ConnzHandler with sorting, filtering, pagination, CID lookup, and closed connection ring buffer
- Add full Go events.go parity types (ConnectEventMsg, DisconnectEventMsg, ServerStatsMsg, etc.)
- Add MessageTraceContext for per-message trace propagation with header parsing
- 74 new tests (17 ConnzFilter + 16 EventPayload + 41 MessageTraceContext)
This commit is contained in:
Joseph Doherty
2026-02-24 16:17:21 -05:00
parent 37d3cc29ea
commit 94878d3dcc
10 changed files with 2595 additions and 15 deletions

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