[M5] verify-curated-db.sh + boost recipe (header-only)

scripts/curated-snippets/openssl.cpp

@@ -0,0 +1,9 @@
+#include <openssl/evp.h>
+import std;
+
+int main() {
+    EVP_MD_CTX* ctx = EVP_MD_CTX_new();
+    EVP_MD_CTX_free(ctx);
+    std::println("openssl ok");
+    return 0;
+}