Add MPV_REUSE_INSTANCE key to the electron backend store service and
include mpvReuseInstance in the shared settings interface so the new
boolean setting is persisted and available across renderer and main
processes.
Also update English i18n JSON formatting and expand the HOME section
translations (reformatting and adding nested playlist-related keys)
to ensure the UI strings remain consistent after changes.
Introduce MPV process reuse and IPC control, and add basic EPG IPC
handlers.
- Add GET_CHANNEL_PROGRAMS and FETCH_EPG ipc handlers to epg.events.ts
to expose fetching EPG data by channel or URLs.
- Rework player.events.ts:
- Export proper bootstrap and add module-level mpvProcess and
mpvSocketPath to track a reusable MPV instance.
- Add sendMpvCommand helper to communicate with MPV via its IPC socket.
- Implement OPEN_MPV_PLAYER handler that:
- Reads MPV path and MPV_REUSE_INSTANCE setting from store.
- Attempts to reuse an existing MPV process by sending loadfile
command over the socket when reuse is enabled.
- Falls back to spawning a new mpv process, creating a unique IPC
socket path, and storing the process/socket when reuse is enabled.
- Adds error and exit handlers to clear stored references.
- Add necessary imports (ChildProcess, existsSync, createConnection).
- Remove/comment unused import block for shared-interfaces and adapt
existing code to the new flow.
Why:
- Enable reusing a single MPV instance to improve resource usage and
provide faster playback switching.
- Add IPC endpoints for EPG to support frontend requests for program
data.