Upload with filename with trailing space is broken using GCS client uploads

Describe the Bug

https://github.com/payloadcms/payload/blob/4181a1235b39d27aa5427e89fcc2fed21a8d2972/packages/payload/src/uploads/generateFileData.ts#L261

sanitize-filename library is removing trailing spaces in filename, but if using clientUploads - google cloud storage receives original filename, resulting in broken upload .

Cliend uploads have some other bugs too (like double-uploading and server performance issues with client uploads) #14768

In my case, i generate direct link to GCS to bypass traffic from my server , directly to GCS , but i can't do that properly, because beforechange hook receives already sanitized filename.

Payload api doesn't work too (404)

Link to the code that reproduces this issue

https://github.com/payloadcms/payload/blob/4181a1235b39d27aa5427e89fcc2fed21a8d2972/packages/payload/src/uploads/generateFileData.ts#L261

Reproduction Steps

Prepeare file with space in the end

Upload it (with clientUploads:true)

Already admin panel having some issues

When saving, we have sanitized filename in admin panel

But file saved in GCS have original filename,which results in inaccessible file

And 404 on API

Which area(s) are affected?

plugin: storage-*

Environment Info

Binaries:
  Node: 22.16.0
  npm: 10.9.2
  Yarn: N/A
  pnpm: 10.22.0
Relevant Packages:
  payload: 3.69.0
  next: 15.4.10
  @payloadcms/db-mongodb: 3.69.0
  @payloadcms/graphql: 3.69.0
  @payloadcms/live-preview: 3.69.0
  @payloadcms/live-preview-react: 3.69.0
  @payloadcms/next/utilities: 3.69.0
  @payloadcms/plugin-cloud-storage: 3.69.0
  @payloadcms/plugin-nested-docs: 3.69.0
  @payloadcms/richtext-lexical: 3.69.0
  @payloadcms/sdk: 3.69.0
  @payloadcms/storage-gcs: 3.69.0
  @payloadcms/translations: 3.69.0
  @payloadcms/ui/shared: 3.69.0
  react: 19.2.1
  react-dom: 19.2.1
Operating System:
  Platform: darwin
  Arch: arm64
  Version: Darwin Kernel Version 25.2.0: Tue Nov 18 21:09:40 PST 2025; root:xnu-12377.61.12~1/RELEASE_ARM64_T6000
  Available memory (MB): 16384
  Available CPU cores: 10