fix: server edit view components don't receive document id prop (#13526)

### What?

Make the document `id` available to server-rendered admin components
that expect it—specifically `EditMenuItems` and
`BeforeDocumentControls`—so `props.id` matches the official docs.

### Why?

The docs show examples using `props.id`, but the runtime `serverProps`
and TS types didn’t include it. This led to `undefined` at render time.

### How?

- Add id to ServerProps and set it in renderDocumentSlots from
req.routeParams.id.

Fixes #13420

docs/custom-components/edit-view.mdx

@@ -293,7 +293,6 @@ Here's an example of a custom `editMenuItems` component:
 
 ```tsx
 import React from 'react'
-import { PopupList } from '@payloadcms/ui'
 
 import type { EditMenuItemsServerProps } from 'payload'
 
@@ -301,12 +300,12 @@ export const EditMenuItems = async (props: EditMenuItemsServerProps) => {
   const href = `/custom-action?id=${props.id}`
 
   return (
-    <PopupList.ButtonGroup>
-      <PopupList.Button href={href}>Custom Edit Menu Item</PopupList.Button>
-      <PopupList.Button href={href}>
+    <>
+      <a href={href}>Custom Edit Menu Item</a>
+      <a href={href}>
         Another Custom Edit Menu Item - add as many as you need!
-      </PopupList.Button>
-    </PopupList.ButtonGroup>
+      </a>
+    </>
   )
 }
 ```

packages/next/src/views/Document/renderDocumentSlots.tsx

@@ -1,6 +1,5 @@
 import type {
   BeforeDocumentControlsServerPropsOnly,
-  DefaultServerFunctionArgs,
   DocumentSlots,
   EditMenuItemsServerPropsOnly,
   PayloadRequest,
@@ -39,6 +38,7 @@ export const renderDocumentSlots: (args: {
   const isPreviewEnabled = collectionConfig?.admin?.preview || globalConfig?.admin?.preview
 
   const serverProps: ServerProps = {
+    id: req.routeParams.id as number | string,
     i18n: req.i18n,
     payload: req.payload,
     user: req.user,

packages/payload/src/config/types.ts

@@ -402,6 +402,7 @@ export type Params = { [key: string]: string | string[] | undefined }
 export type ServerProps = {
   readonly documentSubViewType?: DocumentSubViewTypes
   readonly i18n: I18nClient
+  readonly id?: number | string
   readonly locale?: Locale
   readonly params?: Params
   readonly payload: Payload

test/admin/collections/editMenuItems.ts

@@ -1,6 +1,6 @@
 import type { CollectionConfig } from 'payload'
 
-import { editMenuItemsSlug, postsCollectionSlug, uploadCollectionSlug } from '../slugs.js'
+import { editMenuItemsSlug } from '../slugs.js'
 
 export const EditMenuItems: CollectionConfig = {
   slug: editMenuItemsSlug,
@@ -11,6 +11,9 @@ export const EditMenuItems: CollectionConfig = {
           {
             path: '/components/EditMenuItems/index.js#EditMenuItems',
           },
+          {
+            path: '/components/EditMenuItemsServer/index.js#EditMenuItemsServer',
+          },
         ],
       },
     },

test/admin/components/EditMenuItemsServer/index.tsx

@@ -0,0 +1,13 @@
+import type { EditMenuItemsServerProps } from 'payload'
+
+import React from 'react'
+
+export const EditMenuItemsServer = (props: EditMenuItemsServerProps) => {
+  const href = `/custom-action?id=${props.id}`
+
+  return (
+    <div>
+      <a href={href}>Custom Edit Menu Item (Server)</a>
+    </div>
+  )
+}

test/admin/e2e/document-view/e2e.spec.ts

@@ -731,7 +731,7 @@ describe('Document View', () => {
   })
 
   describe('custom editMenuItem components', () => {
-    test('should render custom editMenuItems component', async () => {
+    test('should render custom editMenuItems client component', async () => {
       await page.goto(editMenuItemsURL.create)
       await page.locator('#field-title')?.fill(title)
       await saveDocAndAssert(page)
@@ -746,6 +746,51 @@ describe('Document View', () => {
 
       await expect(customEditMenuItem).toBeVisible()
     })
+
+    test('should render custom editMenuItems server component', async () => {
+      await page.goto(editMenuItemsURL.create)
+      await page.locator('#field-title')?.fill(title)
+      await saveDocAndAssert(page)
+
+      const threeDotMenu = page.getByRole('main').locator('.doc-controls__popup')
+      await expect(threeDotMenu).toBeVisible()
+      await threeDotMenu.click()
+
+      const popup = page.locator('.popup--active .popup__content')
+      await expect(popup).toBeVisible()
+
+      const customEditMenuItem = popup.getByRole('link', {
+        name: 'Custom Edit Menu Item (Server)',
+      })
+
+      await expect(customEditMenuItem).toBeVisible()
+    })
+
+    test('should render doc id in href of custom editMenuItems server component link', async () => {
+      await page.goto(editMenuItemsURL.create)
+      await page.locator('#field-title')?.fill(title)
+      await saveDocAndAssert(page)
+
+      const threeDotMenu = page.getByRole('main').locator('.doc-controls__popup')
+      await expect(threeDotMenu).toBeVisible()
+      await threeDotMenu.click()
+
+      const popup = page.locator('.popup--active .popup__content')
+      await expect(popup).toBeVisible()
+
+      const customEditMenuItem = popup.getByRole('link', {
+        name: 'Custom Edit Menu Item (Server)',
+      })
+
+      await expect(customEditMenuItem).toBeVisible()
+
+      // Extract the document id from the edit page URL (last path segment)
+      const editPath = new URL(page.url()).pathname
+      const docId = editPath.split('/').filter(Boolean).pop()!
+
+      // Assert the href contains the same id
+      await expect(customEditMenuItem).toHaveAttribute('href', `/custom-action?id=${docId}`)
+    })
   })
 })