support acpSkillLaunch

[koo-virtuals]

Note

Medium Risk
Changes a core launch entrypoint (BondingV4.preLaunch) and adds new launch-mode state/fees that affect who can update tax recipients and what fees are charged. Requires careful review of backward compatibility and on-chain upgrade/storage layout implications.

Overview
Adds an ACP_SKILL launch mode to BondingV4, including new isAcpSkillLaunch tracking, a configurable acpSkillLaunchFee, and a unified preLaunch(..., launchMode_) API that selects fees/flags based on launch mode.

Updates AgentTax.updateCreatorForProjectXLaunchAgents to also allow ACP_SKILL tokens (and swaps to minimal BondingV2/BondingV4 interfaces), adjusts Hardhat compiler overrides for BondingV4, and expands/updates the projectXLaunch test suite to use the new launchMode_ parameter and cover ACP_SKILL scenarios. Also refreshes .openzeppelin/base-sepolia.json to include the new BondingV4 storage layout/implementation metadata.

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Compiler override targets non-existent file path

Medium Severity

The new compiler override targets contracts/newLaunchpad/BondingV4.sol, but this file does not exist. The actual contract modified in this PR is at contracts/launchpadv2/BondingV4.sol. This means the intended viaIR: false setting won't apply to the real BondingV4 contract, which will instead compile with the default viaIR: true. This could produce different bytecode or cause compilation issues (e.g., "stack too deep") for the actual contract. The PR reviewer's comment "Can we remove this from config" likely refers to this same concern.