Add `PaymentHash` to log `Record`s

[TheBlueMatt]

Users often want to track a single HTLC across multiple channels and through the entire pipeline, which should be doable with the new logging metadata wrappers.

[nafisalawalidris]

Hello @TheBlueMatt, I'm interested in working on this issue and adding PaymentHash to log records. I believe this enhancement will be valuable for users tracking HTLCs across multiple channels and through the entire pipeline.

[TheBlueMatt]

Go for it. Probably best to start small and do this iteratively - just add a payment_hash field to Record and set it in a few places, then go through the channel[manager].rs code iteratively and open new PRs to add the record in new sections of the code.

[jbesraa]

hey @nafisalawalidris
are you still interested in doing this?