ENH: Add tracked CMakePresets.json with common build configurations

[hjmjohnson]

Proposal

Add a tracked CMakePresets.json to ITK with common build configurations, reducing the barrier for developers and CI to use consistent, well-tested settings. Currently every developer invents their own cmake flags; a shared presets file would codify the known-good configurations.

Raised by @blowekamp in #6040 — he maintains a local CMakeUserPresets.json with presets like "development", "wrapping", "system-libraries", and "doxygen", and asked whether this should be adopted more widely.

Background

• PR ENH: Allow users to have a CMakeUserPresets.json file #2870 (merged 2021) added CMakeUserPresets.json to .gitignore, enabling user-local presets
• No tracked CMakePresets.json exists yet — ITK has no shared preset definitions
• The pixi workflow (pixi run configure-ci) serves a similar role for CI but doesn't help developers using cmake directly
• CMake presets are supported by VS Code, CLion, Visual Studio, and command-line cmake since CMake 3.19

Suggested presets

Preset name	Purpose	Key flags
dev	Fast iteration, tests enabled	Release, BUILD_TESTING=ON, BUILD_SHARED_LIBS=ON, Ninja
dev-debug	Debug builds with assertions	Debug, BUILD_TESTING=ON, BUILD_SHARED_LIBS=ON
wrapping	Python wrapping	Release, ITK_WRAP_PYTHON=ON, BUILD_SHARED_LIBS=OFF
minimal	Fastest possible build	MinSizeRel, BUILD_TESTING=OFF, BUILD_EXAMPLES=OFF
asan	AddressSanitizer	RelWithDebInfo, -fsanitize=address

These would live in CMakePresets.json (tracked in git). Developers can extend/override via CMakeUserPresets.json (gitignored, per PR #2870).

Usage

# Configure with a preset
cmake --preset dev

# Build
cmake --build --preset dev

# Test
ctest --preset dev

Questions to resolve

• Should presets specify the compiler, or leave that to the user/environment?
• Should CI pipelines migrate from ad-hoc cmake flags to presets?
• Should the CLAUDE.md / AI documentation reference presets as the recommended build method?
• Relationship to pixi: should pixi tasks call cmake --preset internally?

References

• ENH: Allow users to have a CMakeUserPresets.json file #2870 — Added CMakeUserPresets.json to .gitignore
• DOC: Capture recent CI lessons in Documentation/AI/ skill files #6040 (comment) — @blowekamp's original suggestion
• CMake Presets documentation