Add automated codemod reference to v1 → v2 migration guide

[Waleedbhattiii]

Hey wagmi team 👋

I built a codemod that automates ~85% of the v1 → v2 migration
deterministically, with zero false positives. I wanted to check
interest before opening a docs PR.

What it does

8 JSSG transforms (Codemod platform) handle all the mechanical changes:

• Hook renames: useContractRead → useReadContract, useSwitchNetwork → useSwitchChain, and 9 more
• <WagmiConfig> → <WagmiProvider>
• usePrepareContractWrite → useSimulateContract
• TanStack Query params moved into query: {}
• watch: true removal (preserved on useBlockNumber/useBlock)
• Connector class → factory function migration
• createClient → createConfig, useNetwork → useChainId/useChains
• Stale import cleanup

An AI step handles the remaining ~15% (configureChains → Viem transports,
prepare hook destructuring, return shape changes).

Real numbers — tested on your own examples repo

I ran it against the 1.x branch of this repo:

• 27 files scanned
• 10 files changed automatically
• 7 TODO comments for AI/manual patterns
• 0 false positives

Try it

npx codemod waleedbhattiii-wagmi-v1-to-v2

• GitHub: https://github.com/Waleedbhattiii/wagmi-v1-to-v2
• Registry: https://app.codemod.com/registry/waleedbhattiii-wagmi-v1-to-v2

The ask

Would you be open to a small docs PR adding a "Codemod" section
near the top of the v1 → v2 migration guide? Something like:

Automated migration available
Run npx codemod waleedbhattiii-wagmi-v1-to-v2 to automate
~85% of this migration. See the codemod repo for details.

Happy to adjust the copy to match your docs style. Let me know
if you have any questions about the implementation.