verbose: remove system package interaction

Signed-off-by: Ophestra Umiker <cat@ophivana.moe>

internal/verbose/print.go

@@ -0,0 +1,15 @@
+package verbose
+
+import "fmt"
+
+func Println(a ...any) {
+	if verbose.Load() {
+		fmt.Println(a...)
+	}
+}
+
+func Printf(format string, a ...any) {
+	if verbose.Load() {
+		fmt.Printf(format, a...)
+	}
+}

internal/verbose/state.go

@@ -0,0 +1,13 @@
+package verbose
+
+import "sync/atomic"
+
+var verbose = new(atomic.Bool)
+
+func Get() bool {
+	return verbose.Load()
+}
+
+func Set(v bool) {
+	verbose.Store(v)
+}