Ship uds-skill-auth as a distributable skill for field UDS credential helpers.

Business skills depend on this sibling skill instead of the plugin source tree; update the auth standard docs accordingly.

Co-authored-by: Cursor <cursoragent@cursor.com>

uds-auth/skill-helpers/python/uds_skill_auth.py

@@ -1,9 +1,9 @@
 # -*- coding: utf-8 -*-
 """
-Official uds-auth skill helpers (Python).
+uds-skill-auth — Python helpers for UDS-backed skills.
 
-Resolve current-user SSO credentials via loopback Host APIs, or call intranet
-APIs through the outbound proxy (token never needed in skill code for outbound).
+Resolve SSO credentials via loopback Host APIs, or call intranet APIs through
+the outbound proxy.
 
 Environment:
   DSH_SESSION_ID  — agent session id (injected by DSH shell-env)
@@ -35,7 +35,6 @@ def _base_url() -> str:
     web = (os.environ.get("DSH_WEB_URL") or "").strip().rstrip("/")
     if web:
         return web + "/uds-auth"
-    # Common local defaults — try DSH_WEB_URL first in production.
     return "http://127.0.0.1:8787/uds-auth"
 
 
@@ -71,7 +70,6 @@ def _http_json(
     req = urllib.request.Request(url, data=data, headers=hdrs, method=method.upper())
     ctx = ssl._create_unverified_context()
     try:
-        # Prefer no-proxy opener for loopback Host
         if "127.0.0.1" in url or "localhost" in url.lower():
             opener = _opener_no_proxy()
             with opener.open(req, timeout=timeout) as resp: