fix: expose ai health component errors

internal/httpapi/health.go

@@ -19,7 +19,7 @@ type healthDetailResponse struct {
 type healthComponent struct {
 	Name   string         `json:"name"`
 	Status string         `json:"status"`
-	Message string         `json:"message,omitempty"`
+	Error  string         `json:"error,omitempty"`
 	Data   map[string]any `json:"data,omitempty"`
 }
 
@@ -36,7 +36,7 @@ func (s *Server) handleHealthDetail(w http.ResponseWriter, r *http.Request) {
 		resp.Components = append(resp.Components, healthComponent{
 			Name:   "postgres",
 			Status: "down",
-			Message: err.Error(),
+			Error:  err.Error(),
 		})
 		resp.Status = worseHealthStatus(resp.Status, "down")
 		writeJSON(w, http.StatusServiceUnavailable, resp)
@@ -49,7 +49,7 @@ func (s *Server) handleHealthDetail(w http.ResponseWriter, r *http.Request) {
 		resp.Components = append(resp.Components, healthComponent{
 			Name:   "queue",
 			Status: "down",
-			Message: err.Error(),
+			Error:  err.Error(),
 		})
 		resp.Status = worseHealthStatus(resp.Status, "down")
 		writeJSON(w, http.StatusServiceUnavailable, resp)
@@ -103,7 +103,7 @@ func (s *Server) healthProviders(ctx context.Context) healthComponent {
 	return healthComponent{
 		Name:   "providers",
 		Status: status,
-		Message: strings.Join(messages, "; "),
+		Error:  strings.Join(messages, "; "),
 		Data: map[string]any{
 			"providers": providers,
 		},
@@ -133,7 +133,7 @@ func healthQueue(stats *model.Stats) healthComponent {
 	return healthComponent{
 		Name:   "queue",
 		Status: status,
-		Message: message,
+		Error:  message,
 		Data: map[string]any{
 			"pending":                    pending,
 			"running":                    running,
@@ -162,7 +162,7 @@ func healthErrors(stats *model.Stats) healthComponent {
 	return healthComponent{
 		Name:   "errors",
 		Status: status,
-		Message: message,
+		Error:  message,
 		Data: map[string]any{
 			"failed_total": failedTotal,
 			"failed_24h":   failed24h,
@@ -203,7 +203,7 @@ func healthThroughput(stats *model.Stats) healthComponent {
 	return healthComponent{
 		Name:   "throughput",
 		Status: status,
-		Message: message,
+		Error:  message,
 		Data: map[string]any{
 			"done_24h":     done24h,
 			"retried_24h":  retried24h,
@@ -223,7 +223,7 @@ func healthInfra(infra infraStatusResponse) healthComponent {
 	return healthComponent{
 		Name:   "infra",
 		Status: status,
-		Message: message,
+		Error:  message,
 		Data: map[string]any{
 			"sidecar": infra.Sidecar,
 		},