refactor: run natively on node type stripping, modernize tooling

[DylanPiercey]

No description provided.

[changeset-bot]

🦋 Changeset detected

Latest commit: 174ec6e

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

This PR includes changesets to release 1 package

Name	Type
htmljs-parser	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.97%. Comparing base (83d0f84) to head (174ec6e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #222      +/-   ##
==========================================
+ Coverage   99.33%   99.97%   +0.64%     
==========================================
  Files          28       34       +6     
  Lines        4209     4204       -5     
  Branches      773      776       +3     
==========================================
+ Hits         4181     4203      +22     
+ Misses         14        1      -13     
+ Partials       14        0      -14     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 9e4f4406-a7ab-4751-80d5-0cb1d5ab39be

📥 Commits

Reviewing files that changed from the base of the PR and between 83d0f84 and 174ec6e.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json and included by **

📒 Files selected for processing (57)

• .c8rc.json
• .changeset/shiny-llamas-search.md
• .eslintignore
• .eslintrc.json
• .fixpackrc
• .github/workflows/ci.yml
• .gitignore
• .lintstagedrc.json
• .mocharc.json
• .nycrc.json
• .prettierignore
• .prettierrc.json
• bench.ts
• build.mts
• build.ts
• eslint.config.js
• package.json
• src/__tests__/api.test.ts
• src/__tests__/main.test.ts
• src/__tests__/util/snap.ts
• src/__tests__/validate.test.ts
• src/core/Parser.ts
• src/index.ts
• src/internal.ts
• src/states/ATTRIBUTE.ts
• src/states/BEGIN_DELIMITED_HTML_BLOCK.ts
• src/states/CDATA.ts
• src/states/CLOSE_TAG.ts
• src/states/CONCISE_HTML_CONTENT.ts
• src/states/DECLARATION.ts
• src/states/DTD.ts
• src/states/EXPRESSION.ts
• src/states/HTML_COMMENT.ts
• src/states/HTML_CONTENT.ts
• src/states/INLINE_SCRIPT.ts
• src/states/JS_COMMENT_BLOCK.ts
• src/states/JS_COMMENT_LINE.ts
• src/states/OPEN_TAG.ts
• src/states/PARSED_STRING.ts
• src/states/PARSED_TEXT_CONTENT.ts
• src/states/PLACEHOLDER.ts
• src/states/REGULAR_EXPRESSION.ts
• src/states/STRING.ts
• src/states/TAG_NAME.ts
• src/states/TEMPLATE_STRING.ts
• src/states/attr-stage.ts
• src/states/index.ts
• src/states/tag-stage.ts
• src/util/codes.ts
• src/util/constants.ts
• src/util/error-code.ts
• src/util/tag-type.ts
• src/util/util.ts
• src/util/validators.ts
• src/util/validity.ts
• tsconfig.build.json
• tsconfig.json

---

Walkthrough

This PR modernizes the htmljs-parser package by replacing TypeScript enums with erasable const modules for Node.js type-stripping compatibility, migrating from Mocha to Node's built-in test runner, and overhauling the build system. All module imports are standardized to use explicit .ts extensions for proper ESM resolution. Coverage directives are updated from c8 syntax to node:coverage, and project tooling is upgraded with new ESLint flat config, esbuild-based build system, and updated TypeScript configuration. The public API surface (exported values and types) remains compatible while enabling runtime type-stripping.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update-tooling

Warning

There were issues while running some tools. Please review the errors and either fix the tool's configuration or disable the tool if it's a critical failure.

🔧 ESLint

If the error stems from missing dependencies, add them to the package.json file. For unrecoverable errors (e.g., due to private dependencies), disable the tool in the CodeRabbit configuration.

ESLint install failed due to a network error.

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}