Fix: enforce strict backward compatibility for older Perl and Lua runtimes

- Replaced newSVbool with boolSV inside modules/perl/bsdiskinfo.xs to support
  legacy Perl versions (below 5.36) and avoid execution undefined symbol traps.
- Rewrote bitwise operations and math.tointeger in examples/tree_view.lua
  using math.floor and modulo arithmetic for universal Lua 5.1/5.2/5.3/5.4
  compliance.

examples/tree_view.lua

@@ -91,7 +91,7 @@ for _, disk in ipairs(disks) do
                 local temp = "N/A"
                 for _, attr in ipairs(smart) do
                     if attr.id == 194 or attr.id == 190 then
-                        temp = string.format("%d°C", math.tointeger(attr.raw_val & 0xFF) or attr.raw_val)
+                        temp = string.format("%d°C", math.floor(attr.raw_val % 256) or attr.raw_val)
                         break
                     end
                 end

modules/perl/bsdiskinfo.xs

@@ -51,8 +51,8 @@ get_properties(base_disk)
         }
 
         if (props.smart_supported >= 0) {
-            hv_store(hv, "smart_supported", 15, newSVbool(props.smart_supported == 1), 0);
-            hv_store(hv, "smart_enabled", 13,   newSVbool(props.smart_enabled == 1), 0);
+            hv_store(hv, "smart_supported", 15, boolSV(props.smart_supported == 1), 0);
+            hv_store(hv, "smart_enabled", 13,   boolSV(props.smart_enabled == 1), 0);
         }
 
         /* Return as a reference to the hash */