SPDX license:
- Restore GPL-3.0-or-later SPDX header to DeployBase.sol (removed by
the em-dash sed fix in an earlier commit).
SeedSwapper deduplication:
- Extract SeedSwapper into onchain/script/DeployCommon.sol — a single
canonical definition shared by both deploy scripts. This eliminates
duplicate Foundry artifacts (previously both DeployLocal.sol and
DeployBase.sol produced a SeedSwapper artifact, causing ambiguity for
verification and coverage tools).
- Remove inline SeedSwapper and redundant IWETH9 import from
DeployLocal.sol and DeployBase.sol; add `import "./DeployCommon.sol"`.
SeedSwapper hardening (in DeployCommon.sol):
- Replace magic-literal price sentinels with named constants
SQRT_PRICE_LIMIT_MIN / SQRT_PRICE_LIMIT_MAX.
- Wrap both weth.transfer() calls with require() so a non-standard
WETH9 false-return is caught rather than silently ignored.
- Add post-swap WETH sweep in executeSeedBuy(): if the price limit is
reached before the full input is spent, the residual WETH balance is
returned to `recipient` instead of being stranded in the contract.
bootstrap-common.sh:
- Normalise cumulativeVolume output through `cast to-dec` before the
string comparison, guarding against a future change in cast output
format (decimal vs hex).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
