Clipboard file handler can crash on non-UTF-8 watchdog paths

[offbyonebit]

Severity: medium
Type: bug
Location: clipsync/clipboard.py — _ClipboardFileHandler.on_modified(), on_created(), on_moved() (~line 1220+)

Problem: On Linux, watchdog may deliver event.src_path/dest_path as bytes for paths that are not valid UTF-8. The handlers call .decode() without an encoding or error handler, which raises UnicodeDecodeError and can kill the watchdog dispatch thread.

Suggested fix: Use os.fsdecode() (which uses the filesystem encoding and surrogateescape) instead of .decode(), and ensure on_moved() handles a bytes dest_path before passing it to Path().

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_{Filed from a full-source audit of the repo (2026-07-29). Independently confirmed against the source before filing.}