Add an Early Adopter Registry: permanently record the first 1000 addresses that receive CMD to give on-chain prestige to
believers during the Hook's 99% to 1% decaying buy tax era. In the _update override, when an incoming transfer makes a
recipient with zero prior balance and zero adopterIndex, if earlyAdopters.length is below the 1000 cap, push the recipient
to earlyAdopters, set adopterIndex, and emit EarlyAdopter(adopter, index, block). Expose view functions isEarlyAdopter,
earlyAdopterCount, and getAdopters range query. No fees, no token movement, no changes to locked core. Pure prestige
registry enabling future badges, NFTs, or airdrops to recognize early believers.
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