Add AI service dashboard endpoint

internal/httpapi/infra.go

@@ -8,6 +8,8 @@ import (
 	"net/http"
 	"strings"
 	"time"
+
+	"ai-service/internal/config"
 )
 
 type infraStatusResponse struct {
@@ -17,15 +19,18 @@ type infraStatusResponse struct {
 }
 
 func (s *Server) handleInfraStatus(w http.ResponseWriter, r *http.Request) {
+	writeJSON(w, http.StatusOK, loadInfraSnapshot(r, s.cfg))
+}
+
+func loadInfraSnapshot(r *http.Request, cfg config.Config) infraStatusResponse {
 	resp := infraStatusResponse{At: time.Now().UTC()}
-	baseURL := strings.TrimRight(strings.TrimSpace(s.cfg.AIStatsSidecarURL), "/")
+	baseURL := strings.TrimRight(strings.TrimSpace(cfg.AIStatsSidecarURL), "/")
 	if baseURL == "" {
 		resp.SidecarError = "AI stats sidecar is not configured"
-		writeJSON(w, http.StatusOK, resp)
-		return
+		return resp
 	}
 
-	timeout := s.cfg.AIStatsTimeout
+	timeout := cfg.AIStatsTimeout
 	if timeout <= 0 {
 		timeout = 8 * time.Second
 	}
@@ -37,7 +42,7 @@ func (s *Server) handleInfraStatus(w http.ResponseWriter, r *http.Request) {
 	} else {
 		resp.Sidecar = sidecar
 	}
-	writeJSON(w, http.StatusOK, resp)
+	return resp
 }
 
 func fetchAIStatsSidecar(ctx context.Context, baseURL string, timeout time.Duration) (map[string]any, error) {