Clean project layout and fix release workflow

internal/app/refresh_interval.go

@@ -0,0 +1,28 @@
+package app
+
+import (
+	"time"
+
+	"vrc_osc_go/internal/config"
+)
+
+const defaultGUIRefreshInterval = 2 * time.Second
+
+func guiRefreshIntervalFromConfig(cfg *config.Config) time.Duration {
+	if cfg == nil {
+		return defaultGUIRefreshInterval
+	}
+	interval := cfg.GUI.RefreshInterval()
+	if interval < time.Second {
+		return time.Second
+	}
+	return interval
+}
+
+func currentGUIRefreshInterval() time.Duration {
+	cfg, err := config.Load("")
+	if err != nil || cfg == nil {
+		return defaultGUIRefreshInterval
+	}
+	return guiRefreshIntervalFromConfig(cfg)
+}