feat: finish basic of manual in clap

src/yycc/patch/format.hpp

@@ -20,6 +20,7 @@
 namespace yycc::patch::format {
 
     // TODO: order all use of std::format redirect to this function.
+    // TODO: all use of OP::printf should also switch to this function if possible.
 
     template<class... Args>
     std::string format(std::format_string<Args...> fmt, Args&&... args) {

src/yycc/patch/stream.hpp

@@ -10,6 +10,8 @@
  */
 namespace yycc::patch::stream {
 
+    // TODO: replace all old way of outputing utf8 string with this new way.
+
     std::ostream& operator<<(std::ostream& os, const std::u8string_view& u8str);
     std::ostream& operator<<(std::ostream& os, const char8_t* u8str);
     std::ostream& operator<<(std::ostream& os, char8_t u8chr);