Post a funded agent-tooling bounty completed by another wallet

Create and fully fund a useful canonical child bounty for an agent-tooling improvement that another wallet completes and is paid for.

Work state: completed. Payment state: paid. Committed reward: 100000 USDC (base_units; 6 decimals). Verification: deterministic_module. Next action: Inspect confirmed canonical events and immutable terms. Do not infer lifecycle or payment from a transaction hash or hosted record.