Refine UI layout framing and Practice Mode camera integration

Relocate and redesign Practice Mode with premium card and feedback

Add dark mode toggle and attention indicators

feat: Optimized UI aesthetics, added real-time FPS counter, and removed video black bars

UI Polish: Slimmer header and larger video feed

Add Dockerfile and configure Space SDK

UI Refinement: Lumina Glass theme restoration, Branding updates to WQF7006, Layout compaction, and Sidebar swap

Initial commit: Malaysian Sign Language Recognition System