feat: migrate to Lattice selector exports

[dadadave80]

Summary

• Swap the Diamond base for Lattice, and GetSelectors for BaseDeploy in the deploy helper — facet cuts now build via _cut(...) instead of hand-rolled FacetCut structs with _getSelectors("Name") string lookups.
• Each facet (CheckInFacet, FactoryFacet, MarketplaceFacet) implements IFacet.exportSelectors(), so selectors come from the compiler rather than artifact parsing.
• Remove the receive() override that reverted with DirectETHTransferNotAllowed().
• Bump lib/lattice and foundry.lock.

Test plan

• forge test — includes new test/ExportSelectors.t.sol, which asserts each facet's exported selectors match its ABI
• Dry-run the deploy script to confirm the 7 facet cuts still resolve

Commits: 47bc58d, e224ba3