v0.1.2 — guarded Robinhood Chain execution

This release makes the bounty execution path defensible and reproducible.\n\n- Pins Robinhood Chain to Uniswap Universal Router 2.1.1\n- Uses and decodes the official deterministic no-Permit2 Swap Proxy\n- Binds quote and calldata to the exact TBA, tokens, amount, chain, and deadline\n- Validates V2, V3, nested, and V4 plans and rejects unsafe recipients or partial execution\n- Uses exact ERC-20 allowances and one-shot quotes\n- Verifies X credentials before any live transaction and retains confirmed trades in a durable retry outbox\n- Adds complete orchestration tests, a tracked environment template, and a live-proof runbook\n\nValidated on Node.js 20 and 22; 16 tests pass. Live bounty verification still requires a transaction from a controlled StonkBroker and the resulting automatic X post.