Fuxt API - Project Images Endpoint

[dChiamp]

What

Commits the /fuxt/v1/project-images REST endpoint (upload + list, API-key auth, rate limiting) that has been running on Pearl's production WP install but was never committed to the repo.

Why

Production was deployed from a working tree containing this code uncommitted. Today's plugin update (deploying the include param work) replaced the plugin folder from the repo, which removed class-rest-project-images-controller.php while the deployed class-plugin.php still instantiated it — causing a site-wide fatal:

Uncaught Error: Class "FuxtApi\REST_Project_Images_Controller" not found in includes/class-plugin.php:27

The immediate outage was fixed by restoring the file on the server. This PR makes the repo the source of truth again so future deploys from GitHub include the endpoint.

Files

• includes/class-rest-project-images-controller.php — the controller (previously untracked)
• includes/class-plugin.php — registers it in Plugin->init()

Note for reviewer

This code was authored outside this PR (it was found uncommitted in a local working tree and running in production). Worth a quick sanity review of the auth/rate-limit logic before merging — but merging promptly matters, since any deploy from main before this lands will re-break production the same way.

[dChiamp]

Consolidated into #117 for a single deploy.