feat: add safe shared SSO login guidance (central kanban)

SKILL.md

@@ -1,7 +1,7 @@
 ---
 name: corp-v1-channel-kanban
 description: "Use when operating or synchronizing a Corp v1 project's Kanban channel. Maintains Board and Focus across Epic, Feature, and task state; correlates all seven same-project channels; and records human approval before tasks enter Delivery's executable InBacklog queue."
-version: 1.4.1
+version: 1.4.2
 author: Hermes Agent
 license: MIT
 metadata:
@@ -22,6 +22,17 @@ Load the global `documentation-docusaurus` skill from `https://gitea.lego-cloud.
 
 Load the global `corp-v1--glossary` skill from `https://gitea.lego-cloud.eu/home-v1-skills-code-agent/corp-v1--glossary` whenever project documentation needs to define or explain a reusable term. Maintain one canonical definition in the project's final top-level **Glossary** area and link to it from the owning domain page; do not duplicate glossary-style explanations across channel documentation.
 
+## Shared Corp v1 System Login
+
+When an authorized task requires login to a Corp v1 system being built or operated, follow the shared policy in `corp-v1--main` and use only the Bitwarden-injected runtime secrets named:
+
+```text
+HL_V1_SSO_EMAIL
+HL_V1_SSO_PASSWORD
+```
+
+Secret availability is capability, not authorization. Verify the destination origin and task purpose before login. Never print, inspect, log, hash, serialize, paste, screenshot, or persist either value; never place a value in a command line, URL, file, repository, prompt, Discord message, browser console, test fixture, CI output, or generated artifact. Never ask a human to paste a value into chat. If a variable is unavailable, report only its missing name and request Bitwarden/gateway injection. Login does not authorize account recovery, MFA or credential changes, permission changes, billing, spending, destructive operations, or access outside the approved project task.
+
 ## When to Use
 
 Use this skill when: