Create biergarten brewery pipeline project (#199)

pipeline/includes/web_client/web_client.h

@@ -0,0 +1,36 @@
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_WEB_CLIENT_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_WEB_CLIENT_H_
+
+/**
+ * @file web_client/web_client.h
+ * @brief Abstract interface for HTTP and URL utilities.
+ */
+
+#include <string>
+
+/**
+ * @brief Abstract web client interface.
+ */
+class WebClient {
+ public:
+  /// @brief Virtual destructor for polymorphic cleanup.
+  virtual ~WebClient() = default;
+
+  /**
+   * @brief Executes an HTTP GET request.
+   *
+   * @param url Request URL.
+   * @return Response body.
+   */
+  virtual std::string Get(const std::string& url) = 0;
+
+  /**
+   * @brief URL-encodes a string value.
+   *
+   * @param value Raw string value.
+   * @return Encoded value safe for URL usage.
+   */
+  virtual std::string UrlEncode(const std::string& value) = 0;
+};
+
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_WEB_CLIENT_H_