feat(cli): introduce vix make code generator system

- add MakeCommand with full CLI integration
- introduce MakeDispatcher, MakeOptions, MakeResult, MakeUtils
- implement generators:
  - class
  - struct
  - enum
  - function
  - lambda
  - concept
  - exception
  - test
- add modular generator architecture under make/generators/
- support header-only, dry-run, print-only, force modes
- integrate make into CLI and dispatcher
- add preview and structured output

fix: restore MakePaths.hpp and clean path handling

This introduces a full scaffolding system for modern C++ development.

Author: GaspardKirira

include/vix/cli/commands/make/ MakePaths.hpp

@@ -0,0 +1,41 @@
+/**
+ *
+ *  @file MakeDispatcher.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_MAKE_DISPATCHER_HPP
+#define VIX_MAKE_DISPATCHER_HPP
+
+#include <vix/cli/commands/make/MakeOptions.hpp>
+#include <vix/cli/commands/make/MakePaths.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+#include <vix/cli/commands/make/MakeTypes.hpp>
+
+#include <string>
+
+namespace vix::cli::make
+{
+  struct MakeContext
+  {
+    MakeOptions options;
+    MakeKind kind = MakeKind::Unknown;
+    MakeLayout layout;
+    std::string name;
+    std::string name_space;
+  };
+
+  [[nodiscard]] MakeKind parse_make_kind(const std::string &kind);
+  [[nodiscard]] bool is_valid_make_kind(MakeKind kind) noexcept;
+
+  [[nodiscard]] MakeResult dispatch_make(const MakeOptions &options);
+}
+
+#endif

include/vix/cli/commands/make/MakeDispatcher.hpp

@@ -0,0 +1,49 @@
+/**
+ *
+ *  @file MakePaths.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_MAKE_PATHS_HPP
+#define VIX_MAKE_PATHS_HPP
+
+#include <filesystem>
+#include <string>
+
+namespace vix::cli::make
+{
+  struct MakeLayout
+  {
+    std::filesystem::path root;
+    std::filesystem::path base;
+    std::filesystem::path include_dir;
+    std::filesystem::path src_dir;
+    std::filesystem::path tests_dir;
+
+    std::string project;
+    std::string default_namespace;
+
+    bool in_module = false;
+    std::string module_name;
+  };
+
+  [[nodiscard]] std::filesystem::path resolve_root(const std::string &dir_opt);
+
+  [[nodiscard]] std::string detect_project_name_from_cmake(
+      const std::filesystem::path &root);
+
+  [[nodiscard]] std::string guess_default_namespace(const std::string &project);
+
+  [[nodiscard]] MakeLayout resolve_layout(
+      const std::filesystem::path &root,
+      const std::string &in_path);
+}
+
+#endif

include/vix/cli/commands/make/MakePaths.hpp

@@ -0,0 +1,65 @@
+/**
+ *
+ *  @file MakeUtils.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_MAKE_UTILS_HPP
+#define VIX_MAKE_UTILS_HPP
+
+#include <filesystem>
+#include <optional>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace vix::cli::make
+{
+  [[nodiscard]] std::string trim(std::string s);
+  [[nodiscard]] std::string to_lower(std::string s);
+  [[nodiscard]] std::string to_upper(std::string s);
+
+  [[nodiscard]] bool starts_with(std::string_view s, std::string_view prefix);
+  [[nodiscard]] bool ends_with(std::string_view s, std::string_view suffix);
+
+  [[nodiscard]] bool is_identifier_start(char c);
+  [[nodiscard]] bool is_identifier_char(char c);
+
+  [[nodiscard]] bool is_valid_cpp_identifier(const std::string &s);
+  [[nodiscard]] bool is_reserved_cpp_keyword(const std::string &s);
+
+  [[nodiscard]] bool is_valid_namespace_token(const std::string &s);
+  [[nodiscard]] bool is_valid_namespace_string(const std::string &ns);
+
+  [[nodiscard]] std::vector<std::string> split_namespace(const std::string &ns);
+
+  [[nodiscard]] std::string snake_case(std::string s);
+  [[nodiscard]] std::string join_guard_parts(const std::vector<std::string> &parts);
+  [[nodiscard]] std::string make_include_guard(const std::filesystem::path &file);
+
+  [[nodiscard]] std::string namespace_open(const std::string &ns);
+  [[nodiscard]] std::string namespace_close(const std::string &ns);
+  [[nodiscard]] std::string qualified_name(
+      const std::string &ns,
+      const std::string &name);
+
+  [[nodiscard]] bool exists_file(const std::filesystem::path &p);
+  [[nodiscard]] bool exists_dir(const std::filesystem::path &p);
+  [[nodiscard]] bool ensure_dir(const std::filesystem::path &p);
+
+  [[nodiscard]] std::optional<std::string> read_file(
+      const std::filesystem::path &p);
+
+  [[nodiscard]] bool write_file_overwrite(
+      const std::filesystem::path &p,
+      const std::string &content);
+}
+
+#endif

include/vix/cli/commands/make/MakeUtils.hpp

@@ -0,0 +1,25 @@
+/**
+ *
+ *  @file ClassGenerator.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_CLASS_GENERATOR_HPP
+#define VIX_CLASS_GENERATOR_HPP
+
+#include <vix/cli/commands/make/MakeDispatcher.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+
+namespace vix::cli::make::generators
+{
+  [[nodiscard]] MakeResult generate_class(const MakeContext &ctx);
+}
+
+#endif

include/vix/cli/commands/make/generators/ClassGenerator.hpp

@@ -0,0 +1,25 @@
+/**
+ *
+ *  @file ConceptGenerator.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_CONCEPT_GENERATOR_HPP
+#define VIX_CONCEPT_GENERATOR_HPP
+
+#include <vix/cli/commands/make/MakeDispatcher.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+
+namespace vix::cli::make::generators
+{
+  [[nodiscard]] MakeResult generate_concept(const MakeContext &ctx);
+}
+
+#endif

include/vix/cli/commands/make/generators/ConceptGenerator.hpp

@@ -0,0 +1,25 @@
+/**
+ *
+ *  @file EnumGenerator.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_ENUM_GENERATOR_HPP
+#define VIX_ENUM_GENERATOR_HPP
+
+#include <vix/cli/commands/make/MakeDispatcher.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+
+namespace vix::cli::make::generators
+{
+  [[nodiscard]] MakeResult generate_enum(const MakeContext &ctx);
+}
+
+#endif

include/vix/cli/commands/make/generators/EnumGenerator.hpp

@@ -0,0 +1,25 @@
+/**
+ *
+ *  @file ExceptionGenerator.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_EXCEPTION_GENERATOR_HPP
+#define VIX_EXCEPTION_GENERATOR_HPP
+
+#include <vix/cli/commands/make/MakeDispatcher.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+
+namespace vix::cli::make::generators
+{
+  [[nodiscard]] MakeResult generate_exception(const MakeContext &ctx);
+}
+
+#endif

include/vix/cli/commands/make/generators/ExceptionGenerator.hpp

@@ -0,0 +1,25 @@
+/**
+ *
+ *  @file FunctionGenerator.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_FUNCTION_GENERATOR_HPP
+#define VIX_FUNCTION_GENERATOR_HPP
+
+#include <vix/cli/commands/make/MakeDispatcher.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+
+namespace vix::cli::make::generators
+{
+  [[nodiscard]] MakeResult generate_function(const MakeContext &ctx);
+}
+
+#endif

include/vix/cli/commands/make/generators/FunctionGenerator.hpp

@@ -0,0 +1,25 @@
+/**
+ *
+ *  @file LambdaGenerator.hpp
+ *  @author Gaspard Kirira
+ *
+ *  Copyright 2025, Gaspard Kirira.  All rights reserved.
+ *  https://github.com/vixcpp/vix
+ *  Use of this source code is governed by a MIT license
+ *  that can be found in the License file.
+ *
+ *  Vix.cpp
+ *
+ */
+#ifndef VIX_LAMBDA_GENERATOR_HPP
+#define VIX_LAMBDA_GENERATOR_HPP
+
+#include <vix/cli/commands/make/MakeDispatcher.hpp>
+#include <vix/cli/commands/make/MakeResult.hpp>
+
+namespace vix::cli::make::generators
+{
+  [[nodiscard]] MakeResult generate_lambda(const MakeContext &ctx);
+}
+
+#endif