chore: stage all in-progress work before repo split

Web app: new entities (Image, RenderedAsset, SharedImage, Token,
DeviceImageHistory), enums, repositories, controllers, message handlers,
migrations, tests, frontend upload/library/sticker UI, Vue components.

Firmware: EPD background screen binaries + gen scripts, setup_bg header.

Infra: ddev config, test bundle, gitignore coverage dir.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/Controller/SetupController.php

@@ -125,7 +125,7 @@ class SetupController extends AbstractController
         if ($request->isMethod('POST')) {
             $name   = trim((string) $request->request->get('name', ''));
             $orient = $request->request->get('orientation', Orientation::Landscape->value);
-            $interval  = (int) $request->request->get('rotation_interval_hours', 24);
+            $interval  = (int) $request->request->get('rotation_interval_minutes', 1440);
             $window    = (int) $request->request->get('uniqueness_window', 10);
 
             if (empty($name)) {
@@ -137,7 +137,7 @@ class SetupController extends AbstractController
 
             $device->setName($name);
             $device->setOrientation(Orientation::from($orient));
-            $device->setRotationIntervalHours(max(1, $interval));
+            $device->setRotationIntervalMinutes(max(1, $interval));
             $device->setUniquenessWindow(max(1, $window));
             $em->flush();