This pull request mostly focuses on test cleanup, minor refactoring, and configuration improvements. The main changes include renaming the hasESLint function to hasEsLint (and updating all its references), improving test mock implementations for clarity, updating the Biome linter configuration with new and adjusted rules, and cleaning up some import statements.

Test Refactoring and Consistency:

• Renamed the hasESLint function to hasEsLint throughout the codebase, including all test mocks and test cases, to ensure naming consistency and clarity. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12]
• Updated mock implementations in tests to use more concise arrow functions, improving readability and reducing boilerplate. This was done for various mockExists and similar mocks across ESLint, Prettier, and general initialization tests. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14]

Linter and Configuration Updates:

• Added and adjusted several rules in the biome.jsonc configuration: enabled noDuplicateDependencies, noJsxLiterals, and useConsistentArrowReturn; moved noUnnecessaryConditions and noUselessCatchBinding to "off" to reduce noise; and disabled useVueMultiWordComponentNames. [1] [2] [3] [4] [5]

Import Statement Cleanup:

• Updated imports in __tests__/cli.test.ts to use initTRPC from @trpc/server directly instead of via trpcServer, simplifying the import and reducing confusion. [1] [2]

Test Assertion Formatting:

• Improved formatting in test assertions for readability, particularly in the Biome check command test.