fix(subsystem-compile): write stub XML for declared children

When a subsystem definition includes `children: [...]`, the parent XML
was emitted with `<ChildObjects><Subsystem>Name</Subsystem></ChildObjects>`
refs, but the referenced `Subsystems/{Parent}/Subsystems/{Child}.xml`
files were never created. Before 96d1dea (-StrictLog) the platform
silently dropped the refs on load (exit 0), so verify-snapshots showed
these cases green. With the new strict log parsing, `full` and
`with-children` started failing on "Файл объекта не существует".

Both PS1 and PY ports now emit a minimal valid child subsystem stub
(full MetaDataObject, empty Synonym/Content/ChildObjects) via new
Write-ChildSubsystemStub / write_child_subsystem_stub helpers. Stub
creation is guarded by Test-Path / os.path.exists, so a subsequent
compile of the same child via -Parent does not get clobbered, and
re-running the parent compile is idempotent. Дубли в children[]
дедуплицируются через seen-set.

Also removed the "Что генерируется" section from SKILL.md — filesystem
layout is covered by the OutputDir param + [OK] stdout lines; the
section was noise for model consumers.

Bumped subsystem-compile.ps1 v1.4→v1.5 and subsystem-compile.py
v1.3→v1.5 (PY caught up with PS1 version pin).

Verification:
- verify-snapshots --skill subsystem-compile: 5/7 → 7/7
- runner --filter subsystem-compile (PS1): 7/7
- runner --filter subsystem-compile --runtime python: 7/7 (dual-port drift clean)

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 v1.3 — Create 1C subsystem from JSON definition
+# subsystem-compile v1.5 — Create 1C subsystem from JSON definition
 # Source: https://github.com/Nikolay-Shirokov/cc-1c-skills
 import argparse
 import json
@@ -60,6 +60,48 @@ def split_camel_case(name):
     return result
 
 
+def write_child_subsystem_stub(child_path, child_name, format_version):
+    child_uuid = new_uuid()
+    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" '
+        f'version="{format_version}">'
+    )
+    lines.append(f'\t<Subsystem uuid="{child_uuid}">')
+    lines.append('\t\t<Properties>')
+    lines.append(f'\t\t\t<Name>{esc_xml(child_name)}</Name>')
+    lines.append('\t\t\t<Synonym/>')
+    lines.append('\t\t\t<Comment/>')
+    lines.append('\t\t\t<IncludeHelpInContents>true</IncludeHelpInContents>')
+    lines.append('\t\t\t<IncludeInCommandInterface>true</IncludeInCommandInterface>')
+    lines.append('\t\t\t<UseOneCommand>false</UseOneCommand>')
+    lines.append('\t\t\t<Explanation/>')
+    lines.append('\t\t\t<Picture/>')
+    lines.append('\t\t\t<Content/>')
+    lines.append('\t\t</Properties>')
+    lines.append('\t\t<ChildObjects/>')
+    lines.append('\t</Subsystem>')
+    lines.append('</MetaDataObject>')
+    write_utf8_bom(child_path, '\n'.join(lines) + '\n')
+
+
 def main():
     sys.stdout.reconfigure(encoding="utf-8")
     sys.stderr.reconfigure(encoding="utf-8")
@@ -305,12 +347,21 @@ def main():
     write_utf8_bom(target_xml, xml_content)
     print(f"[OK] Created: {target_xml}")
 
-    # Create subdirectory if children exist
+    # Create subdirectory and stub files for children if they exist
     if len(children) > 0:
         child_subs_dir = os.path.join(subs_dir, obj_name, 'Subsystems')
         if not os.path.exists(child_subs_dir):
             os.makedirs(child_subs_dir, exist_ok=True)
             print(f"[OK] Created directory: {child_subs_dir}")
+        seen = set()
+        for ch in children:
+            if ch in seen:
+                continue
+            seen.add(ch)
+            child_xml = os.path.join(child_subs_dir, f'{ch}.xml')
+            if not os.path.exists(child_xml):
+                write_child_subsystem_stub(child_xml, ch, format_version)
+                print(f"[OK] Created stub: {child_xml}")
 
     # --- 5. Register in parent ---
     parent_xml_path = None