Fix MSVC build error from std::array::begin() passed as raw pointer

[ManasBagul23]

addDoubleArrayOption expects a su2double*, but std::array::begin() returns a checked iterator type under the MSVC STL instead of decaying to a pointer as it effectively does with libstdc++. This broke native Windows builds with MSVC. Use .data() instead, which returns a raw pointer on every implementation.

Proposed Changes

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Related Work

Resolve any issues (bug fix or feature request), note any related PRs, or mention interactions with the work of others, if any.

PR Checklist

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• I am submitting my contribution to the develop branch.
• My contribution generates no new compiler warnings (try with --warnlevel=3 when using meson).
• My contribution is commented and consistent with SU2 style (https://su2code.github.io/docs_v7/Style-Guide/).
• I used the pre-commit hook to prevent dirty commits and used pre-commit run --all to format old commits.
• I have added a test case that demonstrates my contribution, if necessary.
• I have updated appropriate documentation (Tutorials, Docs Page, config_template.cpp), if necessary.

[Copilot]

🟢 Approval recommended

The focused portability fix has no unresolved review comments.

Pull request overview

Fixes an MSVC build error by passing raw pointers from std::array to configuration option APIs.

Changes:

• Replaced .begin() with .data() for FLAME_INIT and SPARK_INIT.
• Preserved behavior while ensuring portable MSVC compatibility.

File summaries

File	Description
Common/src/CConfig.cpp	Uses portable raw-pointer access for flamelet options.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 0
• Review effort level: Lite

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