Fixes#4596
The @mariozechner/clipboard dependency was missing native bindings for
32-bit ARM Linux (linux-arm-gnueabihf), causing OpenClaw to crash on
startup on platforms like Raspberry Pi 3 and earlier.
This patch makes the clipboard module gracefully handle missing native
bindings by:
- Emitting a warning instead of throwing a fatal error
- Providing stub implementations that throw informative errors when called
- Allowing OpenClaw to start and run normally (clipboard ops will fail
if called, but the pi-coding-agent should still work)
The patch is applied via pnpm's patch mechanism, which allows us to
modify the clipboard module at install time without forking it.
