first commit

include/components/common.hpp

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+/**
+ * @file common.hpp
+ * @brief Common/utility components
+ */
+
+#pragma once
+
+#include <string>
+
+struct Name {
+    std::string value;
+};
+
+// Tag component - empty struct marks entities for destruction
+struct ToDestroy {};
+
+struct Lifetime {
+    float remaining = 0.0f;
+};
+
+struct Health {
+    float current = 100.0f;
+    float max = 100.0f;
+};