feat: add "Mobile Stackmat" — use your phone as a timer connected to PC

[bryanlundberg]

Implement a new feature called Mobile Stackmat, which allows users to use their mobile phone as a connected timer for desktop sessions. The phone should act like a Stackmat timer, sending the start/stop signals and time data directly to the PC in real time.

Objectives:

• Create a connection system between the mobile device and PC (via local network or QR pairing).
• Detect start/stop events on the mobile and sync the solve time to the desktop app.
• Ensure low latency and accurate synchronization.
• Provide a simple UI on mobile to start timing and show connection status.
• Add visual feedback when the timer connects/disconnects.

[RNAdvani]

@bryanlundberg can you assign this to me and can you add relevant hacktoberfest tags if you do so? Thanks

[bryanlundberg]

@bryanlundberg can you assign this to me and can you add relevant hacktoberfest tags if you do so? Thanks

Hi @RNAdvani, this task is actually quite complex and involves a lot of changes. I added it mainly as a personal to-do, so I don’t forget about it in the coming weeks.

If you find anything else that could be improved, feel free to open an issue. The repository already has the Hacktoberfest tag, so there’s no need to tag individual issues. It will still count.