[kwsantiago]

Adds Lampo, an LDK-based node, as a third Lightning implementation next to LND and Core Lightning.

• docker/lampo builds lampod-cli, lampo-cli and the lampo-bitcoind chain plugin from a privkeyio/lampo.rs tag, and fails if the tag has moved, as the LND image does. The entrypoint writes lampo.conf on every start, waits for the backend before creating the wallet, and removes a wallet database left without its seed by an interrupted first start, which otherwise stops the node from ever starting.
• Polar talks to Lampo's REST API (src/lib/lightning/lampo). That API has no authentication, so its port is published on 127.0.0.1 only. It needs privkeyio/lampo.rs v0.1.0-blake2b.1, which adds the peers route and reports which side opened each channel.
• Lampo nodes can be added when creating a network, in the designer and through the MCP tools, on macOS and Linux. SimLN does not support them.
• The repo state and nodes.json move to version 2 for the new image.

Tested end to end on a network generated by this code (Knots, Core Lightning, LND, Lampo), driving Lampo through the new service: it was funded, opened channels to both peers and accepted channels from both, paid and was paid by both, closed a channel cooperatively by channel point, and kept its identity across a restart, in 3 of 3 runs with no container restarts. yarn tsc, yarn lint and the full test suite pass.