test(P02): dropped-connection durability probe + delivery semantics docs (Wave 4)
Task 2-4-01: tests/telemetry/test_durability.py — real uvicorn ingest + real namespace
sandbox + killable TCP proxy severing the agent's WS mid-stream: every event lands
exactly once, in order, after reconnect (spool fsync + server-side (learner,task,seq)
dedup). Proxy outage is flag-driven with self-closing pumps — external socket surgery
on loop-registered sockets deadlocks the child-watcher (documented in kill()).
README: telemetry delivery semantics (at-least-once delivery, exactly-once storage,
replay path, G-3 flood boundary).
Full suite 217 green; ruff clean.
---ci---
phase: 2
milestone: v0.3
status: execute
requirements: {covered: [REQ-3-003], partial: []}
---/ci---
CIAgent
f75352d0f0