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/opt/pb_sls.cpp

@@ -344,7 +344,7 @@ namespace smt {
                 }
             }
             m_best_penalty = m_penalty;
-            TRACE("opt", display(tout););
+            TRACE(opt, display(tout););
         }
         
         literal flip() {
@@ -496,7 +496,7 @@ namespace smt {
                 }
             }                
 
-            TRACE("opt", tout << "flip: " << l << " num false: " << m_hard_false.num_elems() 
+            TRACE(opt, tout << "flip: " << l << " num false: " << m_hard_false.num_elems() 
                   << " penalty: " << m_penalty << " break count: " << break_count << "\n";);
             return break_count;
         }