sei-protocol/sei-chain — reverse-engineered prompt

I want this repo turned into a working local Sei environment I can actually use. Please build it, get the node binary running on Linux, and set things up so I can start either one local node or the included 4 node Docker cluster without a lot of manual fiddling. I want the chain to come up cleanly, basic RPC access to work, and a simple flow to create a key, initialize a validator style node, and submit a test transaction so I know everything is wired correctly.

Please handle the config details that usually trip people up, like genesis, chain ID, gas prices, ports, and any service or startup scripts that make this easier to run again later. If there are parts for EVM support and CosmWasm that should be enabled by default for local testing, do that too. Leave me with a short README that explains how to build, start, stop, and verify it. If the repo docs are out of date, check the current Sei docs online and use the right setup.