fix(includes): 导出 llvmlite 缺失符号 + 移除临时 DBG

- llvmlite.__init__ 导出 get_struct_fields/get_struct_fcount/DeepCopyType（HandlesAssign tuple 解包与 ClassGenMixin 深拷贝调用 fast-fail 符号未定义）
- 移除 string.vp [ATOF-DBG]、ast/parser.vp [LKP-DBG] 临时插桩（保留查表逻辑）

includes/ast/parser.vp

@@ -312,16 +312,13 @@ def _dbg_lookup_lit_val(ptr: t.CUInt64T) -> double:
     global _g_dbg_lit_found
     _g_dbg_lit_found = 0
     if _g_dbg_pts is None or _g_dbg_vals is None:
-        stdio.printf("[LKP-DBG] pts null cnt=%d\n", _g_dbg_cnt)
         return 0.0
     i: t.CSizeT = 0
     while i < _g_dbg_cnt:
         if _g_dbg_pts[i] == ptr:
             _g_dbg_lit_found = 1
-            stdio.printf("[LKP-DBG] HIT ptr=%p val=%.17g cnt=%d\n", ptr, _g_dbg_vals[i], _g_dbg_cnt)
             return _g_dbg_vals[i]
         i += 1
-    stdio.printf("[LKP-DBG] MISS ptr=%p cnt=%d\n", ptr, _g_dbg_cnt)
     return 0.0