[VPAT-55] chore(security): implement input validation across authentication and workspace forms (#8528)

* chore(security): implement input validation across authentication and workspace forms

  - Add OWASP-compliant autocomplete attributes to all auth input fields
  - Create centralized validation utilities blocking injection-risk characters
  - Apply validation to names, display names, workspace names, and slugs
  - Block special characters: < > ' " % # { } [ ] * ^ !
  - Secure sensitive input fields across admin, web, and space apps

* chore: add missing workspace name validation to settings and admin forms

* feat: enhance validation regex for international names and usernames

- Updated regex patterns to support Unicode characters for person names, display names, company names, and slugs.
- Improved validation functions to block injection-risk characters in names and slugs.

apps/admin/app/(all)/(dashboard)/workspace/create/form.tsx

@@ -14,6 +14,7 @@ import { Button, getButtonStyling } from "@plane/propel/button";
 import { TOAST_TYPE, setToast } from "@plane/propel/toast";
 import { InstanceWorkspaceService } from "@plane/services";
 import type { IWorkspace } from "@plane/types";
+import { validateSlug, validateWorkspaceName } from "@plane/utils";
 // components
 import { CustomSelect, Input } from "@plane/ui";
 // hooks
@@ -96,14 +97,7 @@ export function WorkspaceCreateForm() {
               control={control}
               name="name"
               rules={{
-                required: "This is a required field.",
-                validate: (value) =>
-                  /^[\w\s-]*$/.test(value) ||
-                  `Workspaces names can contain only (" "), ( - ), ( _ ) and alphanumeric characters.`,
-                maxLength: {
-                  value: 80,
-                  message: "Limit your name to 80 characters.",
-                },
+                validate: (value) => validateWorkspaceName(value, true),
               }}
               render={({ field: { value, ref, onChange } }) => (
                 <Input
@@ -135,11 +129,7 @@ export function WorkspaceCreateForm() {
               control={control}
               name="slug"
               rules={{
-                required: "The URL is a required field.",
-                maxLength: {
-                  value: 48,
-                  message: "Limit your URL to 48 characters.",
-                },
+                validate: (value) => validateSlug(value),
               }}
               render={({ field: { onChange, value, ref } }) => (
                 <Input