docs: use 200 for routes response across docs (#14418)

www/apps/resources/app/examples/page.mdx

@@ -163,7 +163,7 @@ export const GET = async (
   req: MedusaRequest,
   res: MedusaResponse
 ) => {
-  res.status(201).json({
+  res.status(200).json({
     message: "Hello, World!",
   })
 }

www/apps/resources/app/how-to-tutorials/how-to/admin/auth/page.mdx

@@ -200,7 +200,7 @@ export const POST = async (req: AuthenticatedMedusaRequest<CreateUserBody>, res:
       },
     })
 
-  return res.status(201).json({ user })
+  return res.status(200).json({ user })
 }
 ```
 

www/apps/resources/app/how-to-tutorials/tutorials/agentic-commerce/page.mdx

@@ -2404,7 +2404,7 @@ export const GET = async (
         },
       })
 
-    res.set(responseHeaders).status(201).json(result)
+    res.set(responseHeaders).status(200).json(result)
   } catch (error) {
     const medusaError = error as MedusaError
     const statusCode = medusaError.type === MedusaError.Types.NOT_FOUND ? 404 : 500

www/apps/resources/app/integrations/guides/okta/page.mdx

@@ -830,7 +830,7 @@ export const POST = async (
       },
     })
 
-  return res.status(201).json({ user })
+  return res.status(200).json({ user })
 }
 ```
 

www/apps/resources/app/recipes/commerce-automation/restock-notification/page.mdx

@@ -840,7 +840,7 @@ export async function POST(
       },
     })
 
-  return res.sendStatus(201)
+  return res.sendStatus(200)
 }
 
 ```

www/apps/resources/app/recipes/marketplace/examples/restaurant-delivery/page.mdx

@@ -977,7 +977,7 @@ export const POST = async (
     } as CreateUserWorkflowInput,
   })
 
-  res.status(201).json({ user: result.user })
+  res.status(200).json({ user: result.user })
 }
 
 ```