fix: restore SGEMMVerifier::shouldFlagAsIncorrect static method

The refactored verify.cuh removed the static shouldFlagAsIncorrect
method from SGEMMVerifier, breaking test_sgemm.cu which calls
SGEMMVerifier::shouldFlagAsIncorrect(result). Restore it as a
deprecated compatibility method.

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Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

Author: LessUp

src/utils/verify.cuh

@@ -270,6 +270,13 @@ class SGEMMVerifier {
      */
     cublasHandle_t getHandle() { return handle_; }
 
+    /**
+     * Legacy compatibility: check if verification result indicates failure.
+     *
+     * @deprecated Use result.passed or result.shouldFlagAsIncorrect() directly.
+     */
+    static bool shouldFlagAsIncorrect(const VerifyResult &result) { return !result.passed; }
+
   private:
     cublasHandle_t handle_;
 };