…norepo (#420)

Synchronizes package meta-files with
https://github.com/MetaMask/metamask-module-template. Changes exclude
source code and other published files with the following exceptions:
- `package.json`, most notably its `exports` field
  - This is due to adding fields expected by our Yarn constraints and
migrating to `ts-bridge` for builds.
  - This is breaking due to changing the `exports`.
- Published files are split into `.cjs` and `.mjs` trees per `ts-bridge`

In detail (all changes per module template unless otherwise specified):
- Use `ts-bridge`
- Bump `eslint`, `prettier`, and related dependencies
- Add `eslint.config.mjs`
- Add and use `@arethetypeswrong/cli`
- Add and use `typedoc`
- Update `.yarnrc.yml` and add `yarn.config.cjs`
- Update `package.json` and `README.md`
- Bump `typescript` from `4.x` to `~5.7.3`
- Bump `jest` and related dependencies from `^27` to `^28`
- Update `tsconfig` files
- Add default test timer setup to `test/setupAfterEnv.ts`
  - Control timers on a per-test basis as necessary
- Lint all files per updated config
  - Set the following rules to `warn`:
- `@typescript-eslint/prefer-nullish-coalescing`, to avoid behavioral
changes
- `@typescript-eslint/explicit-function-return-type`, because too many
violations to fix right now

Work intentionally avoided in this PR:
- Update `package.json#engines`
- Migrate to `vitest`



<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Migrates build to ts-bridge and aligns tooling with the MetaMask
module template (ESLint v9 flat config, TypeScript 5.x, TypeDoc, Yarn
constraints), with no runtime code changes.
> 
> - **Tooling/Config**:
> - Adopt MetaMask module template: add `yarn.config.cjs`, update
`.yarnrc.yml`, and standardize `package.json` fields/`exports`.
>   - Bump TypeScript to `~5.x` and adopt `typescript-eslint@^8`.
> - Upgrade ESLint to v9 with flat config via `eslint.config.mjs` and
MetaMask configs v14.
> - **Build**:
> - Migrate to `ts-bridge`; publish split `dist` outputs
(`.cjs`/`.mjs`).
>   - Add `@arethetypeswrong/cli` and related tooling checks.
> - **Docs**:
>   - Add `typedoc.json` and `typedoc` for API docs generation.
> - **Deps**:
> - Refresh `yarn.lock` and ancillary dev deps (e.g., jest ecosystem
kept at 27.x).
> - **Tests**:
> - Establish default test timer setup in `test/setupAfterEnv.ts` (per
PR notes).
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
7b8b457d4695088cb32935f782e78627e335c656. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

… core monorepo (#420)" (#423)

This reverts commit d10c455.

This breaking change is blocking a release fix that will include:
1. MetaMask/eth-json-rpc-middleware#421
2. MetaMask/eth-json-rpc-middleware#422

Will readd this commit after those two PRs are merged and a patch
release is cut

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…d core monorepo (#420)" (#423) (#426)

This reverts commit d8129a6 (Reapplies
d10c455)

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<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Overhauls the dev toolchain: upgrades ESLint to v9 with new
configs/plugins, moves to TypeScript 5.x, adds
TypeDoc/depcheck/ts-bridge/ATTW tooling, updates Prettier to v3, and
refreshes dependencies.
> 
> - **Dev toolchain sync/upgrade**
> - **ESLint 9**: Bump core and configs (MetaMask v14), migrate
plugins/resolvers (e.g., `eslint-plugin-import-x`,
`eslint-import-resolver-typescript`), and update related utilities.
> - **TypeScript 5.x**: Update TypeScript, `typescript-eslint` (v8),
`ts-node`, and supporting packages.
> - **Formatting & docs**: Upgrade **Prettier** to v3 and
`prettier-plugin-packagejson`; add **TypeDoc**.
> - **New tooling**: Add `@arethetypeswrong/cli`, `@ts-bridge/cli`, and
**depcheck** for dependency hygiene.
> - **Dependencies**: Broad dependency updates and lockfile refresh to
align with core template.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
5ef56a47b1975d8ded4b528f0e5bd76585e4bac1. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->