[lilbonekit]

Moves the web app off the lilbonekit/lwk fork and the @lilbonekit/lwk-web package onto upstream LWK, pinned as the lwk git submodule (c6a0e5d95).

• Transactions are built with PsetBuilder (web/src/lwk/psetBuilder.ts) instead of the fork's TxBuilder extensions.
• Simplicity inputs are finalized with the upstream ControlBlock API.
• Programs load with debug symbols, as the deployed covenants were built with them.
• web/scripts/build-lwk.sh builds LWK; pnpm install / pnpm dev explain what to run if it is missing or outdated. Docker builds it itself, GitLab CI fetches the submodule.
• Seed phrase inputs no longer overflow.

Setup

git submodule update --init lwk
git config submodule.recurse true
cd web && pnpm lwk:build