New workspace package fusion-plugin-telemetry-watcher that turns a
Grafana Alerting webhook payload into a Fusion incident task in the
triage column. Hooks the dedup/severity/rate-limit primitives that
PostHog/Sentry/Slack sources will reuse in Phase 2.
Pipeline:
POST /api/plugins/fusion-plugin-telemetry-watcher/grafana-webhook
→ bearer-secret check
→ parseGrafanaPayload (one signal per firing alert; resolved alerts
are dropped — recovery is verified post-deploy by the QA agent)
→ classifySeverity P0/P1/P2/P3 with critical-path keyword
escalation (payment/auth/billing/subscription)
→ DedupCache 4h fingerprint window — repeat fires log against the
existing task instead of opening duplicates
→ IncidentRateLimiter 5/h, 20/d — overflow becomes a "telemetry
storm" mega-task in a future phase
→ taskStore.createTask({ column: "triage", priority })
→ optional auto-assign to Triage Agent
14 unit tests cover severity buckets, critical-path escalation, dedup
windowing/eviction, hourly+daily rate caps, and the Grafana payload
parser (firing vs resolved, label-based domain inference).
Settings expose all thresholds + secret + dedup window + rate limits
through the dashboard plugin settings UI. README documents the deploy
+ register + Grafana contact-point wiring.
