fix: allow case sensitive path in redirects ( old path field ) #5079 (#5084)

fixes #5079 

## Description
this fix was to allow case sensitive path in redirects (specifically the
"old-path" field), for users migrating from legacy system this could be
important.

![Screen Shot 2025-04-03 at 2 00 54
PM](https://github.com/user-attachments/assets/011d9026-4a54-436c-b26c-8b3300b52c5b)



1. What is this PR about (link the issue and add a short description)

## Steps for reproduction

1. click on project setting
2. go to redirects tab
3. input a path with uppercase letter(s) in the old-path field and the
page you want to redirect to
4. This should work without any error

## Code Review

- [ ] hi @kof, I need you to do
  - conceptual review (architecture, feature-correctness)
  - detailed review (read every line)
  - test it on preview

## Before requesting a review

- [x] made a self-review
- [x] added inline comments where things may be not obvious (the "why",
not "what")

## Before merging

- [x] tested locally and on preview environment (preview dev login:
0000)
- [ ] updated [test
cases](https://github.com/webstudio-is/webstudio/blob/main/apps/builder/docs/test-cases.md)
document
- [ ] added tests
- [ ] if any new env variables are added, added them to `.env` file

Author: Blazing-Mike

apps/builder/app/builder/features/project-settings/section-redirects.tsx

@@ -13,6 +13,7 @@ import {
   Text,
   theme,
   Tooltip,
+  truncate,
 } from "@webstudio-is/design-system";
 import { ArrowRightIcon, TrashIcon } from "@webstudio-is/icons";
 import {

packages/sdk/src/schema/pages.ts

@@ -110,16 +110,34 @@ const DefaultPagePage = z
     "/build prefix is reserved for the system"
   );
 
+export const OldPagePath = z
+  .string()
+  .refine((path) => path !== "", "Can't be empty")
+  .refine((path) => path !== "/", "Can't be just a /")
+  .refine(
+    (path) => path === "" || path.startsWith("/"),
+    "Must start with a / or a full URL e.g. https://website.org"
+  )
+  .refine((path) => path.endsWith("/") === false, "Can't end with a /")
+  .refine((path) => path.includes("//") === false, "Can't contain repeating /")
+  .refine(
+    (path) => /^[-_a-zA-Z0-9*:?\\/.]*$/.test(path), // Allow uppercase letters (A-Z)
+    "Only a-z, A-Z, 0-9, -, _, /, :, ?, . and * are allowed"
+  )
+  .refine(
+    (path) => path !== "/s" && path.startsWith("/s/") === false,
+    "/s prefix is reserved for the system"
+  )
+  .refine(
+    (path) => path !== "/build" && path.startsWith("/build/") === false,
+    "/build prefix is reserved for the system"
+  );
+
 export const PagePath = DefaultPagePage.refine(
   (path) => path === "" || path.startsWith("/"),
   "Must start with a / or a full URL e.g. https://website.org"
 );
 
-// added this for old path input under redirect section of page settings
-export const OldPagePath = DefaultPagePage.refine(
-  (path) => path === "" || path.startsWith("/"),
-  "Must start with a / and it must be full path e.g. /project/id"
-);
 
 const Page = z.object({
   ...commonPageFields,
@@ -152,7 +170,7 @@ export const ProjectNewRedirectPath = PagePath.or(
 );
 
 export const PageRedirect = z.object({
-  old: PagePath,
+  old: OldPagePath,
   new: ProjectNewRedirectPath,
   status: z.enum(["301", "302"]).optional(),
 });