internal/params: relocate from package container

This does not make sense as part of the public API, so make it internal.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/outcome/dispatcher.go

@@ -17,6 +17,7 @@ import (
 	"hakurei.app/ext"
 	"hakurei.app/internal/dbus"
 	"hakurei.app/internal/info"
+	"hakurei.app/internal/params"
 	"hakurei.app/message"
 )
 
@@ -84,7 +85,7 @@ type syscallDispatcher interface {
 	// setDumpable provides [container.SetDumpable].
 	setDumpable(dumpable uintptr) error
 	// receive provides [container.Receive].
-	receive(key string, e any, fdp *uintptr) (closeFunc func() error, err error)
+	receive(key string, e any, fdp *int) (closeFunc func() error, err error)
 
 	// containerStart provides the Start method of [container.Container].
 	containerStart(z *container.Container) error
@@ -154,8 +155,8 @@ func (direct) prctl(op, arg2, arg3 uintptr) error { return ext.Prctl(op, arg2, a
 func (direct) overflowUid(msg message.Msg) int    { return container.OverflowUid(msg) }
 func (direct) overflowGid(msg message.Msg) int    { return container.OverflowGid(msg) }
 func (direct) setDumpable(dumpable uintptr) error { return ext.SetDumpable(dumpable) }
-func (direct) receive(key string, e any, fdp *uintptr) (func() error, error) {
-	return container.Receive(key, e, fdp)
+func (direct) receive(key string, e any, fdp *int) (func() error, error) {
+	return params.Receive(key, e, fdp)
 }
 
 func (direct) containerStart(z *container.Container) error { return z.Start() }