Centralize and document TRACE tags using X-macros (#7657)

* Introduce X-macro-based trace tag definition
- Created trace_tags.def to centralize TRACE tag definitions
- Each tag includes a symbolic name and description
- Set up enum class TraceTag for type-safe usage in TRACE macros

* Add script to generate Markdown documentation from trace_tags.def
- Python script parses trace_tags.def and outputs trace_tags.md

* Refactor TRACE_NEW to prepend TraceTag and pass enum to is_trace_enabled

* trace: improve trace tag handling system with hierarchical tagging

- Introduce hierarchical tag-class structure: enabling a tag class activates all child tags
- Unify TRACE, STRACE, SCTRACE, and CTRACE under enum TraceTag
- Implement initial version of trace_tag.def using X(tag, tag_class, description)
  (class names and descriptions to be refined in a future update)

* trace: replace all string-based TRACE tags with enum TraceTag
- Migrated all TRACE, STRACE, SCTRACE, and CTRACE macros to use enum TraceTag values instead of raw string literals

* trace : add cstring header

* trace : Add Markdown documentation generation from trace_tags.def via mk_api_doc.py

* trace : rename macro parameter 'class' to 'tag_class' and remove Unicode comment in trace_tags.h.

* trace : Add TODO comment for future implementation of tag_class activation

* trace : Disable code related to tag_class until implementation is ready (#7663).

src/ast/for_each_ast.h

@@ -46,7 +46,7 @@ void for_each_ast(ForEachProc & proc, ast_mark & visited, ast * n, bool visit_pa
 
     while (!stack.empty()) {
         curr = stack.back();
-        TRACE("for_each_ast", tout << "visiting node: " << curr->get_id() << ", kind: " << get_ast_kind_name(curr->get_kind())
+        TRACE(for_each_ast, tout << "visiting node: " << curr->get_id() << ", kind: " << get_ast_kind_name(curr->get_kind())
               << ", stack size: " << stack.size() << "\n";);
 
         if (visited.is_marked(curr)) {