Add basic terminal user interface

main.go

@@ -0,0 +1,29 @@
+package main
+
+import (
+	"fmt"
+	"log/slog"
+	"os"
+
+	"suruatoel.xyz/timefiles/lib"
+	"suruatoel.xyz/timefiles/tui"
+)
+
+func main() {
+	if len(os.Args) > 1 {
+		slog.Info(fmt.Sprintf("Set data directory to: %s", os.Args[1]))
+		lib.SetDataDir(os.Args[1])
+	}
+
+	tui, appErr := tui.NewTUI()
+	if appErr != nil {
+		slog.Error(fmt.Sprintf("Failed to initialize application: %s", appErr))
+		os.Exit(2)
+	}
+
+	runErr := tui.Run()
+	if runErr != nil {
+		slog.Error(fmt.Sprintf("Failed to run application: %s", runErr))
+		os.Exit(2)
+	}
+}