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>

config/packages/messenger.yaml

@@ -4,13 +4,17 @@ framework:
 
         transports:
             # https://symfony.com/doc/current/messenger.html#transport-configuration
+            image_processing:
+                dsn: '%env(MESSENGER_TRANSPORT_DSN)%'
+                retry_strategy:
+                    max_retries: 1
+                    multiplier: 2
             async:
                 dsn: '%env(MESSENGER_TRANSPORT_DSN)%'
                 retry_strategy:
                     max_retries: 3
                     multiplier: 2
             failed: 'doctrine://default?queue_name=failed'
-            # sync: 'sync://'
 
         default_bus: messenger.bus.default
 
@@ -22,5 +26,6 @@ framework:
             Symfony\Component\Notifier\Message\ChatMessage: async
             Symfony\Component\Notifier\Message\SmsMessage: async
 
-            # Route your messages to the transports
-            # 'App\Message\YourMessage': async
+            App\Message\RenderImageMessage: image_processing
+            App\Message\AdvanceRotationMessage: async
+            App\Message\RunImageCleanupMessage: async