enhancement: fill in additional Bitcoin/LN tools

[Roasbeef]

As is, we can easily integrate any of the APIs that are exported by lnd defined here: https://lightning.engineering/api-docs/api/lnd/index.html.

This includes normal LN node operation, but also introspecting into the channel graph, and also fetching and parsing blocks.

Here're some additional tools we should start to expose:

• Checking status of invoices: https://lightning.engineering/api-docs/api/lnd/invoices/lookup-invoice-v2

• Tracking LN payment status: https://lightning.engineering/api-docs/api/lnd/router/track-payment-v2

• Wallet activities like creating+funding+signing PSBTs: https://lightning.engineering/api-docs/category/walletkit-service

• Making on chain payments: https://lightning.engineering/api-docs/api/lnd/lightning/send-coins

• Scanning for confirmed transactions: https://lightning.engineering/api-docs/api/lnd/lightning/get-transactions

• Watching for relevant on chain events: https://lightning.engineering/api-docs/category/chainnotifier-service

• Fetching Bitcoin blocks + headers: https://lightning.engineering/api-docs/category/chainkit-service

  • We should parse the returned data into nice dicts/json so the model can interact with it directly.

• Opening + closing channels: https://lightning.engineering/api-docs/api/lnd/lightning/open-channel

• Extracting the LN graph: https://lightning.engineering/api-docs/api/lnd/lightning/describe-graph

• Looking up info for a given node: https://lightning.engineering/api-docs/api/lnd/lightning/get-node-info

• Looking up chan info: https://lightning.engineering/api-docs/api/lnd/lightning/get-chan-info

• Obtaining a node's forwarding history: https://lightning.engineering/api-docs/api/lnd/lightning/forwarding-history

• Updating routing policy for channels: https://lightning.engineering/api-docs/api/lnd/lightning/update-channel-policy

• Estimating on chain fees: https://lightning.engineering/api-docs/api/lnd/lightning/estimate-fee

• Baking macaroons for other agents: https://lightning.engineering/api-docs/api/lnd/lightning/bake-macaroon

  • Can be used to give other agents scoped access to the set of tools, eg: only read only operations.