docs: standardize skill-template and add development guide

scripts/service/sibling_bridge.py

@@ -0,0 +1,39 @@
+"""兄弟技能 CLI 调用模板。"""
+
+from __future__ import annotations
+
+import json
+import os
+import subprocess
+import sys
+from typing import Any, Dict, List, Optional
+
+from util.logging_config import subprocess_env_with_trace
+from util.runtime_paths import get_skills_root
+
+
+def _call_json_script(script_path: str, args: List[str]) -> Optional[Dict[str, Any]]:
+    proc = subprocess.run(
+        [sys.executable, script_path, *args],
+        capture_output=True,
+        text=True,
+        encoding="utf-8",
+        errors="replace",
+        env=subprocess_env_with_trace(),
+    )
+    raw = (proc.stdout or "").strip()
+    if not raw or raw.startswith("ERROR"):
+        return None
+    try:
+        data = json.loads(raw)
+    except json.JSONDecodeError:
+        return None
+    return data if isinstance(data, dict) else None
+
+
+def get_account_manager_main_path() -> str:
+    return os.path.join(get_skills_root(), "account-manager", "scripts", "main.py")
+
+
+def get_content_manager_main_path() -> str:
+    return os.path.join(get_skills_root(), "content-manager", "scripts", "main.py")