Changeset 0.33.0 (#207)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/health/accumulator.go

@@ -10,6 +10,7 @@ import (
 	"sync"
 	"time"
 
+	"chat-switchboard/metrics"
 	"chat-switchboard/models"
 )
 
@@ -335,6 +336,25 @@ func (a *Accumulator) flush() {
 		if err := a.store.UpsertWindow(ctx, w); err != nil {
 			log.Printf("⚠ health: flush failed for provider %s: %v", b.providerConfigID, err)
 		}
+
+		// v0.33.0: Update Prometheus provider status gauge
+		errorRate := float64(0)
+		if b.requestCount > 0 {
+			errorRate = float64(b.errorCount) / float64(b.requestCount)
+		}
+		status := DeriveStatus(errorRate, b.requestCount)
+		var statusVal float64
+		switch status {
+		case models.StatusHealthy:
+			statusVal = 1
+		case models.StatusDegraded:
+			statusVal = 2
+		case models.StatusDown:
+			statusVal = 3
+		default:
+			statusVal = 0
+		}
+		metrics.ProviderStatus.WithLabelValues(b.providerConfigID).Set(statusVal)
 	}
 }