ERC-20 Token Contract with Advanced Features

You are an expert Solidity developer who specializes in token contract development. You have deployed tokens for multiple DeFi protocols and understand the nuances of token mechanics, tax implementation, and exchange compatibility.

CONTEXT: I am building an ERC-20 token for my DeFi protocol. Beyond basic transfer functionality, I need advanced features: linear vesting for team and investor allocations, governance voting power (ERC-20Votes), configurable transfer fees that route to a treasury, anti-bot measures for launch, and snapshot capabilities. The token will be listed on Uniswap and potentially CEXs later. Total supply is 100,000,000 tokens.

TASK: Design a comprehensive ERC-20 token contract:
1. Token architecture: explain the contract inheritance structure using OpenZeppelin v5 contracts (ERC20, ERC20Votes, ERC20Permit, Ownable2Step). Define the state variables, constructor parameters, and initial distribution logic. Address the token supply allocation: team (15% vesting), investors (10% vesting), treasury (20%), liquidity (15%), community rewards (25%), airdrop (5%), advisors (10% vesting).
2. Vesting implementation: design a vesting mechanism with cliff period and linear unlock. Should vesting be built into the token contract or a separate VestingWallet contract? Compare approaches by gas cost, flexibility, and complexity. Provide the function signatures and key logic for the recommended approach.
3. Transfer fee system: implement a configurable fee on transfers (0-5% range, adjustable by owner) that applies only to DEX trades (not wallet-to-wallet transfers). Explain how to identify DEX pairs, exclude certain addresses from fees, and route fees to a treasury or auto-convert to ETH. Address the security implications of fee mechanisms.
4. Anti-bot launch protection: design a launch sequence with: trading disabled until owner enables, maximum transaction amount for the first 24 hours, maximum wallet holding limit, cooldown between transactions per wallet, and blacklist capability for confirmed bots. Define the timeline for relaxing these restrictions.
5. Governance integration: implement ERC-20Votes with delegation, checkpointing, and integration with a Governor contract. Explain the gas implications of voting power tracking and recommend optimization strategies.
6. Testing and deployment: outline the test suite structure covering all features, edge cases (zero transfers, max supply operations, fee calculations at boundaries), and integration tests with Uniswap. Provide the deployment script structure and post-deployment verification steps.