Fix busy binary reinstall and add per-node log viewing.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/nodeclient/client.go

@@ -78,3 +78,37 @@ func PushConfig(n *models.Node, cfg map[string]any) error {
 	}
 	return nil
 }
+
+func FetchLogs(n *models.Node, lines int) (string, error) {
+	if lines <= 0 {
+		lines = 300
+	}
+	url := fmt.Sprintf("http://%s:%d/api/v1/logs?lines=%d", n.Host, n.NodePort, lines)
+	req, err := http.NewRequest(http.MethodGet, url, nil)
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("Authorization", "Bearer "+n.SecretKey)
+
+	client := &http.Client{Timeout: 10 * time.Second}
+	res, err := client.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer res.Body.Close()
+	body, _ := io.ReadAll(res.Body)
+	if res.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("status %d: %s", res.StatusCode, string(body))
+	}
+	var payload struct {
+		OK   bool   `json:"ok"`
+		Logs string `json:"logs"`
+	}
+	if err := json.Unmarshal(body, &payload); err != nil {
+		return string(body), nil
+	}
+	if payload.Logs == "" {
+		return "(empty agent logs)", nil
+	}
+	return payload.Logs, nil
+}