- Refactored all IPC methods and parameters to snake_case for consistency with SvelteKit.
- Implemented exhaustive background caching engine with download locking.
- Reverted to legacy-proven flat hash storage pattern (hash.file).
- Added axios for reliable stream-based binary downloads.
- Updated preload and main handlers to support recursive room data fetching.
- Added logic to construct launcher URL based on hydrated device context.
- Implemented dev/production host fallback for demo.localhost.
- Restored missing package.json with proper start and build scripts.
- Finalized IPC handlers for seed and device configuration.
