[SIMD-LAUNCH]

This project launches the token SIMDTEST (SIMDTEST), an official test launch on the SIMD Launchpad paired with IMD. The project supports the SIMD ecosystem, including ChatSIMD and the SIMD Hackathon (10% of supply donated to 0x3dd5f73dd1a4e62630fad3909673f130ad429985). The token is fully minted at 1,000,000,000 tokens with 18 decimals, with 80% seeding the pool. The hook SIMDTESTHook acts on swap callbacks verifying the pool open block. It implements an anti-snipe fee starting at 30% on swaps during the first 10 blocks after pool open, linearly decreasing to 0%. This anti-snipe fee is not burned but donated back to the pool’s in-range liquidity via the PoolManager donate function using the incoming paired currency. Additionally, an extra 0.5% fee on every swap (on top of the pool 1.25%) is collected in the paired currency and held in the hook. Anyone can call buybackAndBurn() which swaps the accumulated paired currency for SIMDTEST tokens from the same pool and sends those tokens to the burn address 0x000000000000000000000000000000000000dEaD, reducing supply effectively. The hook is non-upgradeable, has no owner or pausing ability. The hook fees never affect the fixed SIMD fees (1%) nor the pool’s own 1.25% fee set by launch rules. Testing must include hooks triggered on swaps before, during, and after the first 10 blocks to verify anti-snipe fee logic, donation correctness to the pool, accumulation and buyback redemption of paired currency, and proper token burning behavior. The hook must never burn paired currency and must not trap users or arbitrarily restrict trades.

Build requirements (mandatory):

• A complete Foundry project at the repository root: foundry.toml with solc 0.8.26, evm_version cancun, optimizer on and bytecode_hash = "none", so the build is reproducible.
• Contracts: SIMDTESTHook. The hook is the hook of this launch's pool; keep its creation code within the EIP-3860 size limit.
• No selfdestruct and no delegatecall anywhere in runtime code. No proxies, no owner, no upgradeability.