docs: general changes to Cloud docs (#13616)

* docs: document self serve

* docs: Cloud docs changes

* vale fixes

* vale error fix

* fixes

* added new sections

* generate

www/apps/resources/generated/edit-dates.mjs

@@ -101,9 +101,8 @@ export const generatedEditDates = {
   "app/commerce-modules/page.mdx": "2025-04-17T08:48:34.855Z",
   "app/create-medusa-app/page.mdx": "2025-07-14T08:51:06.654Z",
   "app/deployment/admin/vercel/page.mdx": "2024-10-16T08:10:29.377Z",
-  "app/deployment/medusa-application/railway/page.mdx": "2025-04-17T08:28:58.981Z",
   "app/deployment/storefront/vercel/page.mdx": "2025-05-20T07:51:40.712Z",
-  "app/deployment/page.mdx": "2025-06-24T08:50:10.114Z",
+  "app/deployment/page.mdx": "2025-09-29T10:23:47.833Z",
   "app/integrations/page.mdx": "2025-08-07T06:06:50.604Z",
   "app/medusa-cli/page.mdx": "2024-08-28T11:25:32.382Z",
   "app/medusa-container-resources/page.mdx": "2025-07-31T13:24:15.786Z",

www/apps/resources/generated/files-map.mjs

@@ -727,10 +727,6 @@ export const filesMap = [
     "filePath": "/www/apps/resources/app/data-model-repository-reference/tips/filtering/page.mdx",
     "pathname": "/data-model-repository-reference/tips/filtering"
   },
-  {
-    "filePath": "/www/apps/resources/app/deployment/medusa-application/railway/page.mdx",
-    "pathname": "/deployment/medusa-application/railway"
-  },
   {
     "filePath": "/www/apps/resources/app/deployment/page.mdx",
     "pathname": "/deployment"

www/apps/resources/generated/generated-how-to-tutorials-sidebar.mjs

@@ -659,14 +659,6 @@ const generatedgeneratedHowToTutorialsSidebarSidebar = {
               "path": "https://docs.medusajs.com/learn/deployment/general",
               "title": "General",
               "children": []
-            },
-            {
-              "loaded": true,
-              "isPathHref": true,
-              "type": "link",
-              "path": "/deployment/medusa-application/railway",
-              "title": "Railway",
-              "children": []
             }
           ]
         },