feat: record ENSv2 mainnet deployment

[JOY (JOY)]

Summary

• record the canonical DOS Mainnet ENSv2 deployment at blocks 117 through 162
• render the custom BENS subgraph for either canonical DOS Testnet or Mainnet
• build both canonical manifests in CI

On-chain evidence

• chain ID: 7979
• deployment transactions: 46
• independently verified successful receipts: 46/46
• first transaction: 0xb2fc1d57f72439403e095a8ec1d319342069cf400d77c89b5a043d43eb301ffc
• last transaction: 0xd1860882db7b632405c6189b4dbad6804f37fc6b957e0558e13d37738170ccbb
• deployer root roles: zero on all six handed-off contracts
• forward and reverse smoke resolution: bens-smoke.dos

Validation

• renderer tests: 9/9 passed
• canonical Testnet render, codegen, and build passed
• canonical Mainnet render and build passed
• local Matchstick remains unavailable on Windows; the preceding reviewed mapping head passed 30/30 and this PR does not change mappings

[gemini-code-assist]

Code Review

This pull request adds support for the DOS Mainnet (chainId 7979) to the subgraph deployment. It introduces the mainnet deployment configuration, updates package scripts, and modifies the manifest rendering script to dynamically replace the network name in the template. The review feedback suggests simplifying the script by removing the redundant EXPECTED_CHAIN_IDS set and dynamically generating the error message for unsupported chain IDs using the keys of the NETWORKS map.

[gemini-code-assist]

Maintaining both EXPECTED_CHAIN_IDS and NETWORKS is redundant and can lead to out-of-sync configurations when adding new networks. We can simplify this by using only the NETWORKS map and checking its keys.

const NETWORKS = new Map([
  [3939, "dos-testnet"],
  [7979, "dos-mainnet"],
]);

[gemini-code-assist]

Instead of checking EXPECTED_CHAIN_IDS, we can check NETWORKS.has(...). Additionally, we can dynamically construct the error message using the keys of NETWORKS to prevent the error message from becoming out of sync when new networks are added.

Suggested change

	if (!EXPECTED_CHAIN_IDS.has(deployment?.chainId)) {
	throw new Error("chainId must be one of 3939, 7979");
	}
	if (!NETWORKS.has(deployment?.chainId)) {
	throw new Error("chainId must be one of " + Array.from(NETWORKS.keys()).join(", "));
	}