feat: show contract runtime bytecode size in the gas stats table and JSON output

[schaable]

Capture the runtime size of the first deployment and display it as a new row at the bottom of the gas stats table and in the JSON output:

╔═══════════════════════════════════════════════════════════════════╗
║ contracts/Calculator.sol:Calculator                               ║
╟───────────────┬────────┬─────────┬────────┬────────┬──────────────╢
║ Function name │ Min    │ Average │ Median │ Max    │ #calls       ║
╟───────────────┼────────┼─────────┼────────┼────────┼──────────────╢
║ add           │ 14159  │ 28495   │ 14159  │ 69751  │ 209          ║
║ divide        │ 8618   │ 20033   │ 14218  │ 69774  │ 215          ║
║ lastOperation │ 2425   │ 2425    │ 2425   │ 2425   │ 3            ║
║ multiply      │ 8601   │ 27937   │ 14201  │ 69793  │ 141          ║
║ reset         │ 4612   │ 8099    │ 10212  │ 25021  │ 206          ║
║ result        │ 2469   │ 2469    │ 2469   │ 2469   │ 14           ║
║ subtract      │ 14186  │ 28970   │ 14186  │ 69754  │ 96           ║
╟───────────────┼────────┼─────────┼────────┼────────┼──────────────╢
║ Deployment    │ Min    │ Average │ Median │ Max    │ #deployments ║
╟───────────────┼────────┼─────────┼────────┼────────┼──────────────╢
║               │ 546337 │ 546337  │ 546337 │ 546337 │ 1            ║
╟───────────────┼────────┼─────────┴────────┴────────┴──────────────╢
║ Bytecode size │ 2294   │                                          ║
╚═══════════════╧════════╧══════════════════════════════════════════╝

Note: the original issue shows the "Bytecode size" row spanning the full table width (no trailing │ after 2294). This isn't currently possible with the existing hardhat-utils table helper without modifying it, and that change doesn't seem worth the added complexity for this case.

{
  "contracts": {
    "contracts/Calculator.sol:Calculator": {
      "sourceName": "contracts/Calculator.sol",
      "contractName": "Calculator",
      "deployment": {
        // ... other stats
        "runtimeSize": 2294
      },
      "functions": {
        // ...
      }
    }
    // ...
  }
}

Docs: NomicFoundation/hardhat-website#246

Closes #8059

[changeset-bot]

🦋 Changeset detected

Latest commit: 5404ac8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
hardhat	Patch

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[Copilot]

Pull request overview

Adds contract runtime bytecode size reporting to Hardhat’s gas analytics output, exposing it both in the console gas stats table and the --gas-stats-json output to address #8059.

Changes:

• Plumbs runtimeSize from EDR gas reports into Hardhat gas measurements.
• Extends gas stats aggregation + JSON schema to include deployment.runtimeSize.
• Updates the gas stats table rendering and tests to display a “Bytecode size” row under deployment stats.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/hardhat/src/internal/builtin-plugins/network-manager/edr/utils/convert-to-edr.ts	Maps EDR deployment runtimeSize into Hardhat deployment gas measurements.
packages/hardhat/src/internal/builtin-plugins/gas-analytics/types.ts	Updates measurement/types and JSON output types to include runtimeSize.
packages/hardhat/src/internal/builtin-plugins/gas-analytics/gas-analytics-manager.ts	Aggregates/stores deployment runtime size, renders it in the table, emits it in JSON.
packages/hardhat/test/internal/builtin-plugins/gas-analytics/gas-analytics-manager.ts	Updates and extends tests for the new runtimeSize behavior and table output.
.changeset/cold-beers-knock.md	Declares a patch release note for the new output fields/row.