feat: ROSE bridge - #143
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Bridge ROSE between Oasis Sapphire and Base via a burn/mint xERC20 (xROSE) and a ROFLBridge custodian, settled through the Accounting UUPS proxy. - Accounting: bridge deposit credit, bridge-withdrawal queueing and idempotent resolution, and route reconciliation for ROFL-TEE-driven mint/burn, alongside the existing deposit, lock, transfer, and history flows. - Base side: XRose (xERC20) with per-bridge mint/burn limits, plus ROFLBridge deployed deterministically via CREATE3 so the address is chain-agnostic. - Off-chain services: bridge route reconciler, bridge submit, and a durable per-chain custody-tx executor for every tx signed by Accounting.evmAddress(). - Deployment + runtime wiring: rofl.yaml bridge deployment, compose env, and the documented bridge configuration in .env.example.
Accounting deploys to Sapphire, which lifts the contract size cap from the EIP-170 24576-byte limit to 64 KiB. Enforce that budget instead, pinned to a baseline so size regressions are caught without blocking on the EIP-170 cap.
Python-driven end-to-end test of the ROSE/xROSE bridge across two real local chains: Accounting plus the bundled rofl-appd on sapphire-localnet, and XRose/ROFLBridge on a local anvil Base chain. Exercises the onlyROFLQuery signed-query path (burn and sweep) through the production services, broadcasting the real mint and burn and asserting on-chain. Hardhat deploys and owner-wires both sides and writes an address manifest; the runner manages anvil and clears PRIVATE_KEY so deploys use the funded localnet mnemonic. The test self-skips unless localnet, the appd, anvil Base, and the manifest are all present, so the default suite stays green without the infra.
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WIP