Closes the last ROADMAP §1 item. The replay/replay-graylog CLI backend
already existed and was already safe (a temporary, auto-cleaned SQLite
baseline, never touching live state) — the gap was purely that a human had
to SSH in and run it by hand. Extracts the core logic from cli.py into
run_local_replay()/run_graylog_replay() in replay.py, reused by both the
CLI (now thin wrappers) and a new dashboard panel (Diagnostics -> Replay &
Detector Deltas). Runs as a background job via an in-memory job store,
since the dashboard already runs ThreadingHTTPServer and this session
directly observed live MCP polling take anywhere from 9 minutes to over an
hour — a synchronous request/response was never viable. Deliberately
serialized to one job at a time given this box's GPU/CPU constraints.
Also removed a redundant "Detector Precision" panel that duplicated (with
a weaker, current-poll-cycle-only computation) what the new Detector
Health panel already does correctly with real historical data.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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