chore: add sending functionality

[saurabhraghuvanshii]

currenlty supporting without collaborative.

Screencast.From.2026-02-21.01-30-07.mp4

[parrth20]

currenlty supporting without collaborative.

Screencast.From.2026-02-21.01-30-07.mp4

hey @saurabhraghuvanshii, quick heads-up, I’ve also been working on this same area for the last 3–4 days, focused on the coinjoin/collaborative transaction flow, and I’ll raise a PR soon.
Would you be okay putting this on hold until then so we can avoid overlapping changes? happy to sync on scope as well.

[saurabhraghuvanshii]

@parrth20 thanks, for informing me I was working on collaborative transaction. But I'll hold my work.

[parrth20]

@parrth20 thanks, for informing me I was working on collaborative transaction. But I'll hold my work.

thanks, and sorry from my side too. I should have opened/claimed a ticket before starting work, that’s my mistake.
I’ve raised my PR now whenever you have time, please review it and share suggestions. I’d really appreciate your feedback.