fix(skd): Python 3.13 compatibility fixes

- skd-edit.py: fix (?i) inline regex flag → re.IGNORECASE (Python 3.13 error)
- skd-edit.py: fix "if not sv" on XML element → "sv is None" (FutureWarning)
- skd-edit.py: fix OrGroup filter crash in output description (list vs dict)
- skd-compile.py: wrap dict structure in list before iteration

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/skd-compile/scripts/skd-compile.py

@@ -1696,6 +1696,8 @@ def emit_settings_variants(lines, defn):
             struct_items = s['structure']
             if isinstance(struct_items, str):
                 struct_items = parse_structure_shorthand(struct_items)
+            elif isinstance(struct_items, dict):
+                struct_items = [struct_items]
             for item in struct_items:
                 emit_structure_item(lines, item, '\t\t\t')
 

.claude/skills/skd-edit/scripts/skd-edit.py

@@ -411,7 +411,7 @@ def parse_order_shorthand(s):
     parts = s.split(None, 1)
     field = parts[0]
     direction = "Asc"
-    if len(parts) > 1 and re.match(r'(?i)^desc$', parts[1]):
+    if len(parts) > 1 and re.match(r'^desc$', parts[1], re.IGNORECASE):
         direction = "Desc"
     return {"field": field, "direction": direction}
 
@@ -514,7 +514,7 @@ def parse_structure_shorthand(s):
             group["name"] = name_m.group(1).strip()
             seg = re.sub(r'\s*@name=.+', '', seg).strip()
 
-        if re.match(r'^(?i)(details|\u0434\u0435\u0442\u0430\u043b\u0438)$', seg):
+        if re.match(r'^(details|\u0434\u0435\u0442\u0430\u043b\u0438)$', seg, re.IGNORECASE):
             group["groupBy"] = []
         else:
             group["groupBy"] = [seg]
@@ -1225,7 +1225,7 @@ def resolve_variant_settings():
                             break
                 if sv:
                     break
-        if not sv:
+        if sv is None:
             print(f"Variant '{variant_arg}' not found", file=sys.stderr)
             sys.exit(1)
     else:
@@ -1233,7 +1233,7 @@ def resolve_variant_settings():
             if isinstance(child.tag, str) and local_name(child) == "settingsVariant" and etree.QName(child.tag).namespace == SCH_NS:
                 sv = child
                 break
-        if not sv:
+        if sv is None:
             print("No settingsVariant found in DCS", file=sys.stderr)
             sys.exit(1)
 
@@ -1823,7 +1823,11 @@ elif operation == "add-conditionalAppearance":
 
         desc = f"{parsed['param']} = {parsed['value']}"
         if parsed.get("filter"):
-            desc += f" when {parsed['filter']['field']} {parsed['filter']['op']}"
+            flt = parsed["filter"]
+            if isinstance(flt, list):
+                desc += f" when OrGroup({len(flt)} conditions)"
+            else:
+                desc += f" when {flt['field']} {flt['op']}"
         if parsed.get("fields"):
             desc += f" for {', '.join(parsed['fields'])}"
         print(f'[OK] ConditionalAppearance "{desc}" added to variant "{var_name}"')