fix(liquidity-launchpad): update CCA factory API to v2.x

[bertankofon]

Summary

The CCA guides still document the v1 factory API, so the sample scripts don't compile against the deployed contracts. v2.0.0 renamed the entrypoints and added a fee controller argument to the constructors.

Affected pages:

• Deployments
• Create a Local Deployment
• Example Configuration

What the guides say vs. what v2.x has:

• initializeDistribution() ‚Üí create()
• getAuctionAddress() ‚Üí getAddress()
• IDistributionStrategy / IDistributionContract ‚Üí IDistributorFactory / IDistributor, from liquidity-launcher
• new ContinuousClearingAuctionFactory() ‚Üí constructor takes address _protocolFeeController
• auction constructor(address, uint128, AuctionParameters) ‚Üí takes a fourth address _protocolFeeController

Both changes are in the v2.0.0 changelog: #356 for the renames, #340 for the fee controller.

The Deployments page also says the factory "has no constructor parameters". It takes one — the canonical deployments land on the same address because they all pass the same value, not because the constructor is empty.

Type of change

• Fix (typo, broken link, incorrect or outdated content)
• New content (guide, page, code example)
• Update to existing content
• Other

How has this been verified?

I checked the deployed v2.1.0 factory at 0x000000001F26a0044BaA66024e7b6599c61963F8. Its runtime bytecode contains the selectors for create() (0x4aaa5b37), getAddress() (0x1bfb751b) and protocolFeeController() (0xf02de3b2), and does not contain 0x03770504 (initializeDistribution) or 0xbad1bd50 (getAuctionAddress) ‚Äî so the documented calls would revert.

eth_getCode returns identical bytecode on Ethereum, Unichain, Base, Arbitrum and Avalanche (codehash 0xa1d2a90564f4f63580b25de42efaff92505c254b00fc666f65ab38126cce5cfa). protocolFeeController() returns the zero address on both Ethereum and Avalanche, which is why one address still works everywhere.

For the snippets: the import paths I used are already remapped in the CCA repo's foundry.toml (liquidity-launcher=lib/liquidity-launcher), and onTokensReceived(), used later in the example configuration, is declared on IDistributor.

Anything else reviewers should know?

Two related things I ran into but didn't touch here, since they don't live in this repo's content:

1. The Deployments page lists the factory on Ethereum, Unichain, Base, Arbitrum, Robinhood Chain and Sepolia. The same address also has code on Avalanche (43114), X Layer (196) and Ink (57073), and deployments.json has no factory record for those three ‚Äî although it does list LiquidityLauncher, LBPStrategy and TokenSplitter on Avalanche.
2. CCALens and TickDataLens (added in Fixed typos #325) aren't on the Deployments page or in deployments.json on any chain.

Happy to open a separate issue for those if that's easier to track.

[github-actions]

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