cilicili 1.0.4 unsigned build 19

Compared with v1.0.4-release-unsigned (178d142), this release updates the app to commit 51fd075.

What's Changed

Improved full-screen player rotation between portrait and landscape, reducing black flashes, distorted scaling, and abrupt transitions.
Improved playback continuity when pulling down Control Center or Notification Center, including background audio session support for transient system overlays.
Improved startup quality selection so videos are less likely to briefly start at 480p before switching to the target quality.
Disabled automatic landscape full-screen entry for portrait videos, keeping portrait videos stable when the phone is rotated.
Removed the visible launch-screen logo/solid first-frame splash for a cleaner app startup.
Refined video detail playback surfaces, loading placeholders, player controls, danmaku overlays, quality controls, related videos, comments, and performance diagnostics.
Improved Home, Dynamic, Live, Search, Mine, Uploader, and image-preview screens with more stable layouts, loading states, and reusable UI components.
Added focused playback recovery tests for stream dispatching, HLS bridge failures, and recovery coordination.
Cleaned local non-code artifacts from the project folder, including old IPA files, .DS_Store, and temporary output.