internal/app: remove seal interface

This further cleans up the package for the restructure.

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

internal/app/export_test.go

@@ -0,0 +1,22 @@
+package app
+
+import (
+	"hakurei.app/container"
+	"hakurei.app/internal/app/state"
+	"hakurei.app/internal/sys"
+	"hakurei.app/system"
+)
+
+func NewWithID(id state.ID, os sys.State) *App {
+	a := new(App)
+	a.id = newID(&id)
+	a.sys = os
+	return a
+}
+
+func AppIParams(a *App, seal *Outcome) (*system.I, *container.Params) {
+	if a.outcome != seal || a.id != seal.id {
+		panic("broken app/outcome link")
+	}
+	return seal.sys, seal.container
+}