platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

selective-vpn-api/app/transport_netns_run.go

@@ -0,0 +1,29 @@
+package app
+
+import (
+	"strings"
+	"time"
+)
+
+func transportRunMust(timeout time.Duration, name string, args ...string) error {
+	stdout, stderr, code, err := transportRunCommand(timeout, name, args...)
+	if err != nil || code != 0 {
+		return transportCommandError(name+" "+strings.Join(args, " "), stdout, stderr, code, err)
+	}
+	return nil
+}
+
+func transportRunSoft(timeout time.Duration, name string, args ...string) error {
+	stdout, stderr, code, err := transportRunCommand(timeout, name, args...)
+	if err != nil || code != 0 {
+		combined := strings.ToLower(strings.TrimSpace(stderr + " " + stdout))
+		if strings.Contains(combined, "no such file") ||
+			strings.Contains(combined, "not found") ||
+			strings.Contains(combined, "cannot find") ||
+			strings.Contains(combined, "does not exist") {
+			return nil
+		}
+		return transportCommandError(name+" "+strings.Join(args, " "), stdout, stderr, code, err)
+	}
+	return nil
+}