Code cleanup and renamed published_* flags to orca_published_* flags to be less generic

src/libslic3r/Format/bbs_3mf.cpp

@@ -1224,7 +1224,7 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
         // Reads the parse-time metadata: the model XML carries it before its resources, while
         // m_model->model_info is only filled in after the whole XML has been parsed.
         bool _is_published_3mf() const {
-            return this->model_info.metadata_items.find("published") != this->model_info.metadata_items.end();
+            return this->model_info.metadata_items.find(ORCA_PUBLISHED_TAG) != this->model_info.metadata_items.end();
         }
 
         bool _is_svg_shape_file(const std::string &filename) const;

src/libslic3r/Format/bbs_3mf.hpp

@@ -154,6 +154,15 @@ enum class SaveStrategy
     Backup = 0x10000 | WithGcode | Silence | SkipStatic | SplitModel,
 };
 
+// Model metadata keys of a "published" 3MF (see MinimalPublished): the flag marks a minimal,
+// tag-less publish export, the others carry the author-selected settings payload. Namespaced
+// with the "orca_published" prefix because metadata_items round-trips verbatim through other
+// slicers, where a bare "published" key could collide.
+inline constexpr const char *ORCA_PUBLISHED_TAG          = "orca_published";
+inline constexpr const char *ORCA_PUBLISHED_KEYS_TAG     = "orca_published_keys";
+inline constexpr const char *ORCA_PUBLISHED_MATERIAL_TAG = "orca_published_material_keys";
+inline constexpr const char *ORCA_PUBLISHED_CONFIG_TAG   = "orca_published_config";
+
 inline SaveStrategy operator | (SaveStrategy lhs, SaveStrategy rhs)
 {
     using T = std::underlying_type_t <SaveStrategy>;