feat(form-decompile,form-compile): commandSource у ButtonGroup/CommandBar

ButtonGroup/CommandBar несут <CommandSource> (источник команд группы): Form (2478),
FormCommandPanelGlobalCommands (1267), Item.<ИмяЭлемента> (команды конкретного
элемента-таблицы). Декомпилятор не захватывал → LOST в форменных/элементных панелях.

Добавлен ключ commandSource (эмитится «как есть», после Title до Representation/Autofill).
Декомпилятор захватывает у ButtonGroup и CommandBar.

TOTAL diff lines выборки 2.17: 5189 → 5149 (-40). ButtonGroup/CommandBar CommandSource
LOST → 0. Снапшот button-group (группа глобальных команд с commandSource) сертифицирован
в 1С (8.3.24). Регресс form-compile 33/33 зелёный на ps + python.
decompile v0.32, compile v1.50.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# form-compile v1.49 — Compile 1C managed form from JSON or object metadata
+# form-compile v1.50 — Compile 1C managed form from JSON or object metadata
 # Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 import argparse
 import copy
@@ -1780,7 +1780,7 @@ KNOWN_KEYS = {
     "excludedCommands",
     "pagesRepresentation",
     "type", "command", "commandName", "stdCommand", "defaultButton", "locationInCommandBar",
-    "commandBar", "contextMenu",
+    "commandBar", "contextMenu", "commandSource",
     "src", "valuesPicture", "loadTransparent",
     "autofill",
     "choiceMode", "initialTreeView", "enableDrag", "enableStartDrag",
@@ -3173,6 +3173,9 @@ def emit_command_bar(lines, el, name, eid, indent):
 
     emit_title(lines, el, name, inner)
 
+    if el.get('commandSource'):
+        lines.append(f'{inner}<CommandSource>{el["commandSource"]}</CommandSource>')
+
     if el.get('autofill') is True:
         lines.append(f'{inner}<Autofill>true</Autofill>')
 
@@ -3224,6 +3227,9 @@ def emit_button_group(lines, el, name, eid, indent):
 
     emit_title(lines, el, name, inner)
 
+    if el.get('commandSource'):
+        lines.append(f'{inner}<CommandSource>{el["commandSource"]}</CommandSource>')
+
     if el.get('representation'):
         lines.append(f'{inner}<Representation>{el["representation"]}</Representation>')