Add tapd Lightning payment RPCs through v0.8.4

[bufo24]

Summary

• add the tapd v0.8.4 Taproot Asset Channels and RFQ proto snapshots needed by the Lightning payment environment
• generate TypeScript types for those selected schemas
• expose invoice/payment listing and streaming, payment tracking, and RFQ forwarding history through the high-level client
• annotate each new public method with the stable tapd version that first included its RPC
• leave the package version, lnd protos, and general proto updater unchanged

Reviewer guide: written vs generated

Handwritten code — review these changes closely

• src/channelsApi.ts — five public Taproot Asset invoice/payment methods and their version annotations
• src/rfqApi.ts — the public RFQ forwarding-history method and its version annotation

Upstream proto snapshots — copied from tapd v0.8.4

• protos/tapchannelrpc/tapchannel.proto
• protos/rfqrpc/rfq.proto

These are source inputs copied from the upstream taproot-assets release; they are not generated or locally designed.

Generated code — 28 files

• every changed file under src/types/**

These TypeScript definitions are generated from the committed proto snapshots. To reproduce and verify them without updating any proto files:

yarn generate:clean
yarn generate:types
yarn generate:index
git diff --exit-code -- src/types

Do not use yarn generate for this check: it also runs the unchanged general proto updater, which targets the package baseline rather than the two selectively updated snapshots in this PR.

Added RPCs

• Rfq.ForwardingHistory — introduced in tapd v0.8.0
• TaprootAssetChannels.ListInvoices — introduced in tapd v0.8.1
• TaprootAssetChannels.ListPayments — introduced in tapd v0.8.1
• TaprootAssetChannels.SubscribeInvoices — introduced in tapd v0.8.1
• TaprootAssetChannels.SubscribePayments — introduced in tapd v0.8.1
• TaprootAssetChannels.TrackPayment — introduced in tapd v0.8.1

Validation

• yarn build
• clean type regeneration from the committed proto snapshots
• tapd payment RPC runtime smoke test
• verified the final proto diff contains exactly the six RPCs above
• verified introduction versions against upstream release-tag ancestry