Adds a Pinocchio implementation of tokens/spl-token-minter, continuing the Pinocchio token-examples lane after transfer-tokens (#596), escrow (#598), and create-token (#599).

What it does

Two instructions, matching the anchor and native options:

• Create — creates an SPL Token mint (9 decimals) and attaches an on-chain Metaplex metadata account (name, symbol, URI).
• Mint — mints tokens into the payer's associated token account, creating that account first if needed.

Notes

• Instructions are dispatched by a leading discriminator byte (0 = Create, 1 = Mint), matching the Borsh enum variant index used by the native example.
• The Metaplex Token Metadata program has no typed Pinocchio crate, so the CreateMetadataAccountV3 CPI is built by hand (raw InstructionView / cpi::invoke) — the same approach as add pinocchio create-token example #599.
• The bankrun test loads the Metaplex program from a mainnet-dumped token_metadata.so fixture via a postinstall script, like the anchor example.
• The mint authority is passed as a non-signer and aliased to the payer (which signs), mirroring the native example.

Files

• New: tokens/spl-token-minter/pinocchio/ (program + bankrun test)
• Edited: root Cargo.toml (workspace member), README.md (pinocchio link), Cargo.lock