Initial commit: Null DRM Official

Capture, decrypt, and restream toolkit with compiled-in app modules
(RTE, TG4, BBC), on-device MITM proxy, streamd control plane, and www.
BBC module.yaml is published (clear streams); other module values stay local.

apps/modules/provider/duration.go

@@ -0,0 +1,41 @@
+package provider
+
+import (
+	"fmt"
+	"time"
+)
+
+// Duration is a time.Duration that accepts the spellings a module.yaml uses:
+// a Go duration string ("25s", "1200ms") or a bare number meaning seconds.
+// yaml.v3 decodes time.Duration only as raw nanoseconds, which no one writes.
+type Duration time.Duration
+
+// D returns the value as a time.Duration, or def when unset.
+func (d Duration) D(def time.Duration) time.Duration {
+	if d == 0 {
+		return def
+	}
+	return time.Duration(d)
+}
+
+func (d *Duration) UnmarshalYAML(unmarshal func(any) error) error {
+	var s string
+	if err := unmarshal(&s); err == nil {
+		if s == "" {
+			*d = 0
+			return nil
+		}
+		v, err := time.ParseDuration(s)
+		if err != nil {
+			return fmt.Errorf("invalid duration %q: %w", s, err)
+		}
+		*d = Duration(v)
+		return nil
+	}
+	var f float64
+	if err := unmarshal(&f); err != nil {
+		return fmt.Errorf("duration must be a string like \"25s\" or a number of seconds")
+	}
+	*d = Duration(time.Duration(f * float64(time.Second)))
+	return nil
+}