fix: skip empty model names in healthcheck, check only embed model in evaluate

- healthcheck: skip empty strings in requiredModels to avoid false negatives
- evaluate: check only OllamaEmbed (not OllamaModel) since RagCode only uses embeddings

Author: razvan

internal/healthcheck/healthcheck.go

@@ -242,6 +242,9 @@ func CheckOllamaWithModels(baseURL string, requiredModels []string) CheckResult
 
 		var missing []string
 		for _, requiredModel := range requiredModels {
+			if strings.TrimSpace(requiredModel) == "" {
+				continue
+			}
 			reqBase, reqTag := normalizeModelName(requiredModel)
 			found := false
 

internal/service/tools/evaluate_ragcode.go

@@ -74,7 +74,7 @@ func (t *EvaluateRagCodeTool) Execute(ctx context.Context, args map[string]inter
 
 	var healthStatus []string
 	if t.cfg != nil {
-		models := []string{t.cfg.LLM.OllamaModel, t.cfg.LLM.OllamaEmbed}
+		models := []string{t.cfg.LLM.OllamaEmbed}
 		health := healthcheck.CheckAllWithModels(t.cfg.LLM.OllamaBaseURL, t.cfg.Storage.VectorDB.URL, models)
 		for _, h := range health {
 			statusSymbol := "✅"