LNURL Pay and Lightning Address

[ovitrif]

Related to #202

FIGMA: Amount Screen | Confirm Screen

This PR re-implements LNURL Pay and lightning address handling.

Changes

• LNURL Pay amount screen
• LNURL Pay confirm screen
• QuickPay for LNURL Pay
• remove Scanner.LnurlAddress handling
• more accurate lightning max sendable limit
• update ldk-node and add invoice description to activity
• other:
  • polish numberpad buttons text and styling
  • polish keyboard keys clickable area and UX feedback
  • only clear clipboard after send if autoRead is on

QA Notes

bech32 lnurl

• in Env.kt, change ElectrumServers.REGTEST to

  host = "__YOUR_NETWORK_IP__",
  tcp = 60001,
  

• uninstall old app and install fresh one
• checkout bitkit-docker repo
• set DOMAIN in docker-compose.yml to http://__YOUR_NETWORK_IP__:3000
• run docker compose up --build
• mine blocks: ./bitcoin-cli mine 101
• fund onchain wallet: ./bitcoin-cli send
• mine block: ./bitcoin-cli mine 1
• get local LND nodeID and open channel
  • http://localhost:3000/health
  • get nodeID from lnd_info.uris array, replace 127.0.0.1 with __YOUR_NETWORK_IP__ and paste into app, then complete the flow
  • ./bitcoin-cli mine 3
• generate LNURL pay: http://localhost:3000/generate/pay
• paste lnurl into app
• generate fixed amount LNURL pay (QuickPay): http://localhost:3000/generate/pay?minSendable=10000&maxSendable=10000

lightning address

• ngrok http 3000
• change DOMAIN in docker-compose.yml to __NGROK_URL__
• docker compose down if running
• docker compose up --build
• http://localhost:3000/.well-known/lnurlp/alice
• copy the email-like lightning address and paste into app

Tests + Regressions

• send onchain
• send lightning
• quickpay
  • bip21 unified with lightning
  • bolt11
  • lnurlPay bech32 minSendable == maxSendable
• lnurlPay bech32
• lnurlPay bech32 minSendable == maxSendable
• lnurl lighting address

Previews

Bech32 LNURL	Lightning Address	Fixed Amount & QuickPay
bech32.mp4	address.mp4	fixedAmountAndQuickpay.mp4

[jvsena42]

Very clean refactor!

It would be good to add the QA notes to the readme

[ovitrif]

Very clean refactor!

It would be good to add the QA notes to the readme

Thanks, added ref to the bitkit-docker repo in next PR 2f5e50d