docs: add comments to header file

backend/src/database.hpp

@@ -8,32 +8,39 @@ namespace database
     /**
      * @brief Class containing a SQLite database connection
      *
+     * @warning Rule of Three/Five not currently defined for this class.
      */
     class Database
     {
     public:
         /**
          * @brief Construct a new Database object
          *
-         * @param file_path
+         * @warning If a file already exists at the provided path, it is replaced.
+         * @param file_path The path for the .db file.
          */
         Database(const std::string &file_path);
+
         /**
-         * @brief
+         * @brief Execute the provided SQL command.
          *
-         * @param command
+         * @param command The command to be executed.
          */
         void execute(const std::string &command);
+
         /**
-         * @brief
+         * @brief Print the rows of the provided table.
          *
+         * @param table The table to print
          */
         void printTable(const std::string &table);
+
         /**
-         * @brief
+         * @brief Close the connection with the SQLite database.
          *
          */
         void close();
+
         /**
          * @brief Destroy the Database object
          *