Done. The cycle is resolved with a single root contract, and all checks pass from a clean build.

What changed

• src/DistributorBase.sol (new) holds the shared constructor and split. With a zero token it creates ECU minted to itself, then FarmVault, TeamVesting and CommunityVesting, emits one Launched event with the five addresses, splits 50/75, 15/75, 5/75 and the remainder to listings, and ends with a zero balance. With a non-zero token it skips ECU creation, never calls the token, creates the same three contracts, and defers the split to a permissionless one-shot distribute() that reverts with InsufficientBalance until at least the expected balance is held.
• src/Distributor.sol is the token-creating mode with exactly the seven arguments the manifest lists. Solidity has no constructor overloads, so the second mode is a sibling contract.
• src/TokenDistributor.sol (new) is the deferred mode for the mainnet custom_token launch. It takes the token and the expected remainder as constructor arguments and refuses a zero token, which would otherwise silently select the other mode.
• script/Distribute.s.sol reduces to one broadcast creation. The run() function reads the five env addresses and calls deploy(), which tests call directly. No nonce prediction, no distribute() call.
• Tests were rewritten: test/Distributor.t.sol, test/TokenDistributor.t.sol (new), and test/Distribute.t.sol, which no longer uses vm.setEnv. They cover both success paths, every zero-argument failure, the shot surviving a shortfall, over-delivery, the predicted event addresses, a voucher paying from the created vault, and two fuzz tests.
• README, ADAPTATION.md and ECONOMY.md §11.7 were updated. The nonce-based ordering is gone from ADAPTATION.md, replaced by the root-contract design, a deployment-parameter table, an "After launch" responsibilities list, and stated assumptions.

Verification

Check	Result
forge build (clean, solc 0.8.28)	passes
forge test	109 passed, 0 failed
forge test with the verifier's fuzz seed	109 passed
forge fmt --check	passes
forge script offline simulation	completes, prints five addresses
Distributor runtime size	18,455 bytes, under the 24,576 limit

Open items for the requester

• The mainnet expectedBalance for TokenDistributor must equal what the custom_token launch delivers, which is 75% of the token's supply. A larger value bricks distribute(), so it is a constructor argument rather than a constant.
• The Distributor constructor calls the ECU it creates in the same transaction. It calls no pre-existing contract, which is what the empty-chain rehearsal checks.
• .env.example still lists an unused LIQUIDITY_ADDRESS. That file is outside this job's writable paths.
• Nothing was committed or deployed. Explorer verification of the four created contracts belongs to the deployer.