Choose any allowed status in the table, set the cover on create

- the status cell offers every transition the entry allows, scheduling
  asks for the date right there
- POST /api/v1/posts takes cover_media_id, no second call needed
- the row grid follows its content so long type names stop overlapping

tests/components/entry-status-control.test.tsx

@@ -10,7 +10,7 @@ vi.mock('~/lib/entry-actions', () => ({
 	archiveEntry: vi.fn(),
 	publishEntry: vi.fn(),
 	resumeEntry: vi.fn(),
-	unscheduleEntry: vi.fn(),
+	scheduleEntry: vi.fn(),
 }))
 
 const { EntryStatusControl } = await import('~/components/admin/EntryStatusControl')
@@ -20,14 +20,31 @@ function render(status: PostStatus): string {
 }
 
 describe('EntryStatusControl', () => {
-	it('bietet zu jedem Status den passenden Schritt an', () => {
-		expect(render('draft')).toContain('actions.publish')
-		expect(render('scheduled')).toContain('actions.unschedule')
-		expect(render('published')).toContain('actions.archive')
-		expect(render('archived')).toContain('actions.resume')
+	it('stellt jedem Status seine erlaubten Ziele zur Wahl', () => {
+		const draft = render('draft')
+
+		expect(draft).toContain('move.scheduled')
+		expect(draft).toContain('move.published')
+		expect(draft).toContain('move.archived')
+		expect(draft).not.toContain('move.draft')
 	})
 
-	it('zeigt den Status immer als Marke', () => {
+	it('lässt Veröffentlichtes nur zurückziehen', () => {
+		const published = render('published')
+
+		expect(published).toContain('move.archived')
+		expect(published).not.toContain('move.published')
+		expect(published).not.toContain('move.scheduled')
+	})
+
+	it('führt Zurückgezogenes zurück in den Entwurf', () => {
+		const archived = render('archived')
+
+		expect(archived).toContain('move.draft')
+		expect(archived).not.toContain('move.archived')
+	})
+
+	it('zeigt den Status immer an', () => {
 		expect(render('draft')).toContain('status.draft')
 		expect(render('published')).toContain('status.published')
 	})