feat: add more launch options in extparam

[jaimewangvirtuals]

Note

Medium Risk
Upgradeable BondingV5 gains new state slots and fee-delegation metadata that backends must encode correctly; launch/fee flows are unchanged on-chain but wrong payloads could mis-route off-chain delegation.

Overview
BondingV5 extends the preLaunch extParams_ payload (v3) while keeping V1/V2 encodings valid: bit 2 is isRobotics, bits 3–4 are feeDelegationType (none / address / twitter), and an optional second word holds feeDelegationRecipient as a right-aligned bytes32 (address or Twitter id). preLaunch persists these in new append-only storage, emits PreLaunchExtParams, and documents the length-tolerant layout.

Tests add bondingV5ExtParams.js for decoding, legacy abi.encode(bool), and the new event. Fixtures pass ACF_FAKE_INITIAL_VIRTUAL_LIQ into BondingConfig, set graduationExcessBurnWallet, grant BE_OPS_ROLE for drain helpers (replacing EXECUTOR_ROLE in one drain test), and update setBondingCurveParams call sites.

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Stale fee delegation fields

Medium Severity

preLaunch now persists feeDelegationType and feeDelegationRecipient as on-chain source of truth, but setFeeDelegation still only updates isFeeDelegation. After an owner correction, the bool used for launch authorization can disagree with the stored type and recipient that backends read for vault setup.

Additional Locations (1)

• contracts/launchpadv2/BondingV5.sol#L954-L961

 

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[jaimewangvirtuals]

isFeeDelegation is the top-level gate for fee delegation.