v2.0.0-beta.5

Switched app/daemon communication from custom Tauri IPC boilerplate to a simple localhost API with HTTP POST commands and SSE status updates.
Moved daemon ownership of runtime/config/job state into dedicated backend modules for a cleaner architecture.
Fixed tauri dev so it launches the desktop app cleanly instead of opening the browser version.
Split frontend API code into separate hydroserver and os-service folders.
Updated the frontend app model to bootstrap from the daemon API and listen to live SSE state.
Simplified dashboard/job status handling to use daemon-published state instead of the older approach.
Repaired and expanded unit tests after the architecture refactor.
Fix inconsistencies between Windows and MacOS