feat(skills): auto-detect XML format version from Configuration.xml

When working with existing configs dumped from newer platforms (8.3.27+),
XML files use version="2.20" instead of "2.17". Skills now detect the
version from the nearest Configuration.xml walking up the directory tree,
falling back to "2.17" if not found. This prevents format version mismatch
errors during LoadConfigFromFiles.

Updated skills (11): meta-compile, form-compile, form-add, template-add,
cfe-borrow, epf-add-form, help-add, role-compile, subsystem-compile,
interface-edit. Also fixed form-validate to accept version 2.20.

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

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

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# subsystem-compile v1.2 — Create 1C subsystem from JSON definition
+# subsystem-compile v1.3 — Create 1C subsystem from JSON definition
 # Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 import argparse
 import json
@@ -10,6 +10,22 @@ import uuid
 import xml.etree.ElementTree as ET
 
 
+def detect_format_version(d):
+    while d:
+        cfg_path = os.path.join(d, "Configuration.xml")
+        if os.path.isfile(cfg_path):
+            with open(cfg_path, "r", encoding="utf-8-sig") as f:
+                head = f.read(2000)
+            m = re.search(r'<MetaDataObject[^>]+version="(\d+\.\d+)"', head)
+            if m:
+                return m.group(1)
+        parent = os.path.dirname(d)
+        if parent == d:
+            break
+        d = parent
+    return "2.17"
+
+
 def esc_xml(s):
     return s.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;').replace('"', '&quot;')
 
@@ -169,6 +185,8 @@ def main():
             type_part = CONTENT_TYPE_MAP[type_part]
         return f'{type_part}.{name_part}'
 
+    format_version = detect_format_version(output_dir)
+
     # --- 3. Resolve defaults ---
     synonym = str(defn['synonym']) if defn.get('synonym') else split_camel_case(obj_name)
     comment = str(defn['comment']) if defn.get('comment') else ''
@@ -205,7 +223,7 @@ def main():
     lines = []
 
     lines.append('<?xml version="1.0" encoding="UTF-8"?>')
-    lines.append('<MetaDataObject xmlns="http://v8.1c.ru/8.3/MDClasses" xmlns:app="http://v8.1c.ru/8.2/managed-application/core" xmlns:cfg="http://v8.1c.ru/8.1/data/enterprise/current-config" xmlns:cmi="http://v8.1c.ru/8.2/managed-application/cmi" xmlns:ent="http://v8.1c.ru/8.1/data/enterprise" xmlns:lf="http://v8.1c.ru/8.2/managed-application/logform" xmlns:style="http://v8.1c.ru/8.1/data/ui/style" xmlns:sys="http://v8.1c.ru/8.1/data/ui/fonts/system" xmlns:v8="http://v8.1c.ru/8.1/data/core" xmlns:v8ui="http://v8.1c.ru/8.1/data/ui" xmlns:web="http://v8.1c.ru/8.1/data/ui/colors/web" xmlns:win="http://v8.1c.ru/8.1/data/ui/colors/windows" xmlns:xen="http://v8.1c.ru/8.3/xcf/enums" xmlns:xpr="http://v8.1c.ru/8.3/xcf/predef" xmlns:xr="http://v8.1c.ru/8.3/xcf/readable" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.17">')
+    lines.append(f'<MetaDataObject xmlns="http://v8.1c.ru/8.3/MDClasses" xmlns:app="http://v8.1c.ru/8.2/managed-application/core" xmlns:cfg="http://v8.1c.ru/8.1/data/enterprise/current-config" xmlns:cmi="http://v8.1c.ru/8.2/managed-application/cmi" xmlns:ent="http://v8.1c.ru/8.1/data/enterprise" xmlns:lf="http://v8.1c.ru/8.2/managed-application/logform" xmlns:style="http://v8.1c.ru/8.1/data/ui/style" xmlns:sys="http://v8.1c.ru/8.1/data/ui/fonts/system" xmlns:v8="http://v8.1c.ru/8.1/data/core" xmlns:v8ui="http://v8.1c.ru/8.1/data/ui" xmlns:web="http://v8.1c.ru/8.1/data/ui/colors/web" xmlns:win="http://v8.1c.ru/8.1/data/ui/colors/windows" xmlns:xen="http://v8.1c.ru/8.3/xcf/enums" xmlns:xpr="http://v8.1c.ru/8.3/xcf/predef" xmlns:xr="http://v8.1c.ru/8.3/xcf/readable" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="{format_version}">')
     lines.append(f'\t<Subsystem uuid="{uid}">')
     lines.append('\t\t<Properties>')