[projmgr] Add native CMake project support

[brondani]

Fixes

• [Feature Request]: Integrate and debug CMake-native projects via csolution cmsis-toolbox#624

Changes

• Add cmake project descriptors to solution schemas and parsing, with mutually exclusive CProject, West, and CMake entries.
• Generate synthetic contexts, CBuild metadata, output image declarations, and CBuild index flags for native CMake projects.
• Support CMake source paths, generators, configure options, targets, devices, project IDs, and image outputs.
• Add unit coverage for inferred and explicit project IDs, generated outputs, device selection, and run metadata.

This enables CMSIS solutions to orchestrate native CMake projects without applying CProject-specific processing.

Checklist

• 🤖 This change is covered by unit tests (if applicable).
• 🤹 Manual testing has been performed (if necessary).
• 🛡️ Security impacts have been considered (if relevant).
• 📖 Documentation updates are complete (if required).
• 🧠 Third-party dependencies and TPIP updated (if required).

[github-actions]

Test Results

  2 files   14 suites   13m 47s ⏱️
481 tests 481 ✅ 0 💤 0 ❌
962 runs  962 ✅ 0 💤 0 ❌

Results for commit a25b6c5.

♻️ This comment has been updated with latest results.

[Copilot]

Pull request overview

This PR adds native CMake project support to ProjMgr so CMSIS solutions can orchestrate non-CProject builds via cmake: project descriptors, emitting the appropriate .cbuild.yml, .cbuild-run.yml, and .cbuild-idx.yml metadata.

Changes:

• Extends the solution schema + YAML parsing to accept cmake: entries (mutually exclusive with project/west) and carry CMake-specific build metadata (source, generator, configure options, target, images, device).
• Updates build processing and emitters to treat CMake contexts specially (e.g., skip some CProject-specific nodes, tag .cbuild-idx.yml entries with cmake: true, and map declared CMake images into output metadata).
• Adds unit test coverage + test data for inferred/explicit CMake project IDs, image outputs, device selection, and generated run/index files.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tools/projmgr/test/src/ProjMgrUnitTests.cpp	Adds a unit test validating generated cbuild/cbuild-run/cbuild-idx outputs for CMake projects.
tools/projmgr/test/data/CmakeSupport/solution.csolution.yml	Adds test input solution demonstrating cmake: project descriptors (explicit + inferred project-id).
tools/projmgr/src/ProjMgrYamlParser.cpp	Parses cmake: descriptors under projects: and extends validation key lists.
tools/projmgr/src/ProjMgrWorker.cpp	Adds CMake context initialization, device precedence handling, and output filename/image handling for CMake builds.
tools/projmgr/src/ProjMgrCbuildIdx.cpp	Adds cmake: true flag emission and avoids emitting cdefault for CMake contexts.
tools/projmgr/src/ProjMgrCbuild.cpp	Emits build.cmake node in generated .cbuild.yml and suppresses non-applicable nodes for CMake contexts.
tools/projmgr/src/ProjMgr.cpp	Treats CMake projects as valid “projects found” to avoid false errors.
tools/projmgr/schemas/common.schema.json	Adds cmake project schema, project-id constraints, and cmake flags in cbuild-idx/cbuild descriptors.
tools/projmgr/include/ProjMgrYamlParser.h	Adds YAML key constants for cmake fields.
tools/projmgr/include/ProjMgrWorker.h	Adds CMake descriptor + cmakeOn flag to ContextItem.
tools/projmgr/include/ProjMgrParser.h	Introduces CmakeDesc/CmakeImage and tracks cmakeApps in the parsed solution.

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[codecov]

Codecov Report

❌ Patch coverage is 88.60759% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.13%. Comparing base (9fc7a07) to head (a25b6c5).

Files with missing lines	Patch %	Lines
tools/projmgr/src/ProjMgrWorker.cpp	85.71%	2 Missing and 2 partials ⚠️
tools/projmgr/src/ProjMgrYamlParser.cpp	87.09%	3 Missing and 1 partial ⚠️
tools/projmgr/src/ProjMgrCbuildIdx.cpp	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2571      +/-   ##
==========================================
+ Coverage   72.09%   72.13%   +0.04%     
==========================================
  Files         185      185              
  Lines       30129    30198      +69     
  Branches    17747    17807      +60     
==========================================
+ Hits        21722    21784      +62     
- Misses       6102     6107       +5     
- Partials     2305     2307       +2     

Flag	Coverage Δ
projmgr-cov	88.05% <88.60%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
tools/projmgr/include/ProjMgrParser.h	100.00% <ø> (ø)
tools/projmgr/include/ProjMgrWorker.h	83.87% <ø> (ø)
tools/projmgr/src/ProjMgr.cpp	86.55% <100.00%> (ø)
tools/projmgr/src/ProjMgrCbuild.cpp	93.62% <100.00%> (+0.19%)	⬆️
tools/projmgr/src/ProjMgrCbuildIdx.cpp	96.17% <66.66%> (+0.04%)	⬆️
tools/projmgr/src/ProjMgrWorker.cpp	87.57% <85.71%> (-0.01%)	⬇️
tools/projmgr/src/ProjMgrYamlParser.cpp	85.06% <87.09%> (+0.07%)	⬆️

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