Add batcher and local wallet, do NFT indexing ourselves

[SpaceManiac]

• Remove external indexer dependencies in favor of Paima primitives
  • Add Hardhat configuration for AnnotatedMintNft contract, like Tarochi for Genesis Trainers
  • Use Tarochi Genesis Trainer entry in extensions.$ENV.yml to track NFT ownership
  • Track per-NFT win/lose stats in a new table, according to what NFT was selected when a lobby was created or joined
  • Fulfill relevant API routes:
    • /account-nfts
      • Includes all linked wallets
    • /historical-owner (currently ignores passed-in contract address and block height)
    • /title-image (currently ignores passed-in contract address)
    • /nft-score (currently ignores passed-in contract address)
• Add LocalWallet and wallet delegation handling
  • Add batcher startup configuration
  • Old middleware method userWalletLogin returns as soon as LocalWallet is ready
  • LocalWallet and batcher are used for most game transactions instead of requiring signing each time
  • New middleware method externalWalletConnect follows full delegation procedure and posts &wd| message to batcher
  • All API routes use "main wallet" when sensible
• Update a few more misc NPM packages

Future work:

• Test NFT-less play in non-debug builds
• Test/refine "main wallet" handling in API for corner cases, such as playing some NFT-less games then connecting a wallet

Depends on: PaimaStudios/paima-engine#439