feat(hobbs-organizer): v1.3.0 photo gallery + Shield photo app 1.1, slideshow 15s

- /photo/gallery: D-pad grid, OK opens full screen, arrows browse, Back returns
- 400px gallery tiles cached per photo (sync + uploads)
- com.dayline.photos 1.1: launcher tile opens the gallery, takes remote input,
  Back steps through WebView history; screensaver unchanged
- slideshow interval 20s -> 15s (live settings)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E9NnVEico3WvFxLyjy1iW3

tv app/Hobbs-Family-Organizer-Self-Hosted-v1.0.0/app/api/health/route.ts

@@ -15,7 +15,7 @@ export async function GET() {
     {
       status: "ok",
       service: "hobbs-family-organizer",
-      version: "1.2.0",
+      version: "1.3.0",
       calendarConfigurationValid: calendars.some((calendar) => calendar.enabled),
       calendarsEnabled: calendars.filter((calendar) => calendar.enabled).length,
       adminConfigured,