[Framework] Fix more warnings (clang, macos)

[fredroy]

Mostly warning about implicit conversions (real to bool, signed/unsigned, to a smaller type)

The not-trivial one is Sofa/framework/Type/src/sofa/type/Mat.h

  template<typename real2>
    constexpr Mat(const Mat<L,C,real2>& m) noexcept
    {
        std::copy(m.begin(), m.begin()+L, this->begin());
    }

used with CRS templated on blocks (i.e Vec), it can lead conversion (copy) from Vec3f to Vec3d, thus triggering the deprecations set in #5675

NOTE: the AI was a local-deployed one (Qwen3.5)

[with-all-tests]

---

By submitting this pull request, I acknowledge that
I have read, understand, and agree SOFA Developer Certificate of Origin (DCO).

---

Reviewers will merge this pull-request only if

• it builds with SUCCESS for all platforms on the CI.
• it does not generate new warnings.
• it does not generate new unit test failures.
• it does not generate new scene test failures.
• it does not break API compatibility.
• it is more than 1 week old (or has fast-merge label).

[fredroy]

[ci-build][with-all-tests]

[hugtalbot]

Doc says "Schedules the stream on the specified dispatch queue." where dispatch_get_main_queue() is the dispatch queue to use to receive events

The documentation also states that FSEventStreamSetDispatchQueue is now deprecated and the new function is advised to be used

So 👍