refactor: refactor embedded C policy and enhance warning checks

- Updated the default output path in  to .
- Introduced a new  file to define excluded prefixes, compatibility files, and forbidden calls for embedded C sources.
- Modified  to improve compiler flags and source file organization.
- Added scripts for checking C warnings and embedded C compliance, ensuring self-owned sources are validated against the policy.
- Implemented regression tests to capture and report self-owned C compiler warnings during builds.
- Created a new test suite for runtime tests of SDK utilities, ensuring deterministic behavior.
- Enhanced existing test scripts to include checks for C warnings and compliance with the embedded C policy.

.clang-format

@@ -0,0 +1,10 @@
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+PointerAlignment: Right
+SortIncludes: Never