revise, readability

[strengejacke]

No description provided.

[gemini-code-assist]

Code Review

This pull request refactors R/utils_format.R to improve code readability and efficiency, notably by replacing nested conditionals with switch() and optimizing row insertion in .add_obs_row. Review feedback identifies a typo in the 'Auxiliary' parameter string and points out that the pre-allocation of final_table is ineffective when using named assignments, suggesting a simpler list initialization instead.

[Copilot]

Pull request overview

This PR focuses on readability-oriented refactoring of the table-formatting utilities and updates/extends the Discovr book regression tests to cover additional SEM output.

Changes:

• Refactors R/utils_format.R for readability (reorganizes globals, replaces conditional chains with switch(), and extracts component-header logic into helper functions).
• Adjusts test dependencies/qualification (e.g., rstanarm::stan_glm(), WRS2) and adds a new lavaan::sem() test case for chapter 10.4 output formatting.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
tests/testthat/test-discovr_book.R	Fixes/clarifies test dependencies and adds SEM (lavaan) output coverage.
R/utils_format.R	Large readability refactor of formatting helpers and component header generation logic.

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