handle socket-level errors that bypass Bun's JS error path

Two related defenses around the CLN unix socket connection:

- Global net.Socket.prototype.connect patch: when Bun's
  net.createConnection is called on a non-existent unix socket, the
  ENOENT it throws bypasses all JS error handlers and crashes the
  process. existsSync-check the path first; if missing, emit a normal
  'error' event so the caller can handle it gracefully.

- lightningProxy: existsSync gate before constructing LightningClient,
  plus a client.on("error") listener that clears the cached client on
  socket-died errors instead of letting the unhandled event take down
  the process.

Co-Authored-By: Claude Opus 4.7 (1M context) <[email protected]>

0 files changed, 0 insertions, 0 deletions