[clang-tidy][NFC] Add missing Option tests in cppcoreguidelines and performance [3/N] (#185210)

This PR adds testcases for untested Options in `cppcoreguidelines` and
`performance` modules for better test coverage, specifically:

- `cppcoreguidelines-init-variables`: `IncludeStyle`, `MathHeader`.
- `cppcoreguidelines-pro-bounds-constant-array-index`: `IncludeStyle`.
- `performance-inefficient-string-concatenation`: `StrictMode`.
- `performance-no-automatic-move`: `AllowedTypes`.
- `performance-type-promotion-in-math-fn`: `IncludeStyle`.
- `performance-unnecessary-value-param`: `IncludeStyle`.

As of AI Usage: Assisted by Gemini 3 and Claude (Writing part of the
testcases and pre-commit reviewing).

GitOrigin-RevId: ff232d67b534f41617effa20abdab0933fe127c6