feat: eslint rules set 1

[Alessandro100]

Summary:

closes #162

Enables the Eslint rules

      '@typescript-eslint/no-unnecessary-type-assertion': 'off',
      '@typescript-eslint/no-redundant-type-constituents': 'off',
      '@typescript-eslint/require-await': 'off',

Expected behavior:

The application should behave the exact same way with cleaner coding practices

Testing tips:

Running yarn lint should pass
In this PR the features affected the most would be

• map precompute -> to go the mbta detali map and assure it still works
• The add feed form (basic testing)

Please make sure these boxes are checked before submitting your pull request - thanks!

• Run the unit tests with yarn test to make sure you didn't break anything
• Add or update any needed documentation to the repo
• Format the title like "feat: [new feature short description]". Title must follow the Conventional Commit Specification(https://www.conventionalcommits.org/en/v1.0.0/).
• Linked all relevant issues
• Include screenshot(s) showing how this pull request works and fixes the issue(s)

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Project	Deployment	Actions	Updated (UTC)
mobilitydatabase-web	Ready	Preview, Comment	Jul 17, 2026 2:39pm