feat(monitoring): bot observability dashboards — Grafana + Persian RTL ERP page
Grafana (full use of the existing monitoring/ stack, per OSS policy):
- datasources.yml: BotPostgres (uid bot-postgres) over the shared network;
grafana service joins 'shared' + carries the datasource env
- db_init.py: idempotent read-only role obs_reader (USAGE on schema public +
SELECT on bot_traces/bot_trace_events; skipped when
OBS_READER_PASSWORD empty; ALTER ROLE for rotation) + composite index
ix_bot_trace_events_stage_time (stage, created_at DESC) — senior-engineer
review applied with the column-name fix (event_type -> stage); (trace_id)
already covered by the existing (trace_id, created_at) index
- dashboards/bot-observability.json: KPI row (real traffic, events, Jev/
fallback errors, Jev p95, tokens, commits, archive guard), events/day,
per-stage p50/p95, mention statuses (arbiter+fallback aggregates + legacy
rows), DeepSeek arbiter actions, tokens/day, model-drift vs jev-1.13.0,
user-choice A/B, STT + audio.enhance health, archive size guard
- dashboards/bot-trace-explorer.json: trace table + full event drill-down
via the trace_id variable
ERP page (admin-only, Persian RTL, recharts@^3 for React 19):
- backend bot_metrics.py: read-only require_role('admin') endpoints
(summary/routing/quality/jev/stt/traces + trace detail); aggregates count
real traffic only (calibration/demo/chat_id=0 excluded)
- frontend BotMonitorPage at /bot-monitor (KPI cards, daily events,
status donut, arbiter actions, user-choice A/B, STT/enhance tables,
stage latency, tokens chart, traces table + detail drawer with payload
viewer); entry link from the admin panel; MobileTabBar hidden there
- api.ts: typed botMetrics client section
Tooling/docs:
- tools/seed_observability_demo.py: deterministic demo traces (source='demo',
every current pipeline stage incl. audio.enhance/jev.failure/arbitration/
fallback/user choices) — excluded from real-traffic aggregates
- monitoring/README.md + bot/docs/DEPLOY-AND-MONITORING.md: setup, seed and
rollback notes; alerts deliberately deferred (owner decision 2026-10-24)
Verified locally: obs_reader SELECT ok / INSERT denied; panels' SQL run as
obs_reader with data; datasource health OK; both dashboards survive a grafana
restart; endpoints 200 as admin and 403 without role; tsc + vite build clean;
page renders in-browser (admin session); bot startup provisions role+index.
whqreza
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