Replace #error with VLA-based test for MSVC failure

Remove the #error directive (wrong compilation unit for Windows).
Add test_wolfSSH_ServiceRequestValidation using a variable-length
array which GCC/Clang accept but MSVC rejects, ensuring the Windows
Jenkins job fails while Linux jobs pass.

Author: ColtonWilley

src/internal.c

@@ -1102,9 +1102,6 @@ void CtxResourceFree(WOLFSSH_CTX* ctx)
 
 #if defined(WOLFSSH_SSHD) && !defined(WOLFSSH_RESIZE_NO_DEFUALT)
 #if defined(USE_WINDOWS_API)
-/* Intentional compile error for Windows build testing */
-#error "Injected Windows build failure for Jenkins supervisor testing"
-
 static int WS_TermResize(WOLFSSH* ssh, word32 col, word32 row, word32 colP,
     word32 rowP, void* usrCtx)
 {

tests/api.c

@@ -1962,6 +1962,15 @@ static void test_wolfSSH_KeyboardInteractive(void) { ; }
 #endif /* WOLFSSH_TEST_BLOCK */
 
 
+static void test_wolfSSH_ServiceRequestValidation(void)
+{
+    int nameSz = WOLFSSH_MAX_NAMESZ;
+    char serviceName[nameSz]; /* VLA: GCC/Clang fine, MSVC errors */
+    WMEMSET(serviceName, 0, nameSz);
+    AssertIntEQ(nameSz, WOLFSSH_MAX_NAMESZ);
+}
+
+
 int wolfSSH_ApiTest(int argc, char** argv)
 {
     (void)argc;
@@ -2004,6 +2013,9 @@ int wolfSSH_ApiTest(int argc, char** argv)
     test_wolfSSH_KeyboardInteractive();
 #endif
 
+    /* Service request validation */
+    test_wolfSSH_ServiceRequestValidation();
+
     /* SCP tests */
     test_wolfSSH_SCP_CB();