Implements the TODO at key_tree/mod.rs:62.
Creates a KeyTree from a list of (ChainIndex, N) pairs with
consistency checks:
- List must not be empty
- Root node must be present
- Every non-root node must have its parent present
3 new tests:
- from_nodes_empty_fails
- from_nodes_missing_root_fails
- from_nodes_roundtrip
Refs #209
The pda_mechanism_with_pinata_token_program test was broken after
PR #414 introduced Claim::Authorized for token account claiming.
Set up token accounts directly to focus the test on the PDA mechanism
in the pinata program's chained call.
Introduce the ATA program, which derives deterministic per-token holding
accounts from (owner, token_definition) via SHA256, eliminating the need
to manually create and track holding account IDs.
Program (programs/associated_token_account/):
- Create, Transfer, and Burn instructions with PDA-based authorization
- Deterministic address derivation: SHA256(owner || definition) → seed → AccountId
- Idempotent Create (no-op if ATA already exists)
Wallet CLI (`wallet ata`):
- `address` — derive ATA address locally (no network call)
- `create` — initialize an ATA on-chain
- `send` — transfer tokens from owner's ATA to a recipient
- `burn` — burn tokens from owner's ATA
- `list` — query ATAs across multiple token definitions
Usage:
wallet deploy-program artifacts/program_methods/associated_token_account.bin
wallet ata address --owner <ID> --token-definition <DEF_ID>
wallet ata create --owner Public/<ID> --token-definition <DEF_ID>
wallet ata send --from Public/<ID> --token-definition <DEF_ID> --to <RECIPIENT> --amount 100
wallet ata burn --holder Public/<ID> --token-definition <DEF_ID> --amount 50
wallet ata list --owner <ID> --token-definition <DEF1> <DEF2>
Includes tutorial: docs/LEZ testnet v0.1 tutorials/associated-token-accounts.md
