feat: add 14 new scenarios and full-spectrum campaign

[vbuilder69420]

Summary

• Adds 14 new TOML scenario files covering a broad range of EVM gas patterns and real-world protocol interactions
• Adds 1 new campaign (full-spectrum.toml) that mixes all scenarios across 4 stages
• All contracts are self-contained Solidity 0.8.26, compiled with solc --optimize --optimize-runs 200
• Each scenario includes contract deployment, state setup (liquidity/approvals/funding), and fuzzed spam patterns

New scenarios

Scenario	Category	Gas Profile	Spam Patterns
erc721.toml	NFT	Storage (ownership maps)	mint, transferFrom
erc1155.toml	Multi-token	Calldata + storage scaling	mint, transfer, batch transfer
erc4626vault.toml	Yield Vaults	Share accounting math	deposit, withdraw
governance.toml	Governance	Nested mapping writes	createProposal, vote
lending.toml	Lending	Ratio math + cross-contract	depositCollateral, borrow, repay
simpleAMM.toml	DEX	x*y=k + fee calc	swapAForB, swapBForA, addLiquidity
stablecoin.toml	Stablecoins	Supply tracking + ETH refunds	mint, burn, transfer, flashMintBurn
nameRegistry.toml	Name Services	keccak256 + storage	register, renew, setRecord
multisig.toml	Infrastructure	Dynamic arrays + nested maps	submit, confirm, execute
staking.toml	Staking	Reward calc + external calls	stake, unstake, claim, compound
hashPrecompiles.toml	Precompiles	Pure compute	SHA256, RIPEMD160, Identity, batch
bridge.toml	Bridges	Event-heavy + nonce tracking	depositETH, depositERC20, process
dutchAuction.toml	Auctions	Timestamp math + ETH refunds	bid (time-based pricing)
orderBook.toml	DEX	Array storage + partial fills	placeBuy, placeSell, cancel

New campaign

campaigns/full-spectrum.toml — 4-stage progressive load test:

1. Warmup (50 TPS, 60s) — ERC20, ERC721, ERC1155, stablecoin
2. DeFi Ramp (150 TPS, 120s) — AMM, lending, staking, vault, orderbook, bridge
3. Full Load (300 TPS, 180s) — all 14 scenarios simultaneously
4. Cooldown (30 TPS, 60s) — governance, staking, name registry

Test plan

• Each scenario parses correctly (contender setup scenario:<name>.toml)
• Each scenario deploys + spams against a local Anvil node at low TPS
• Full-spectrum campaign runs all 4 stages without errors
• No regressions in existing scenarios

🤖 Generated with Claude Code