chore: enforce strict security and remove confidential data

docs/vibe-coding/openhands-agent.md

@@ -1,12 +0,0 @@
-# OpenHands Agent
-
-OpenHands prefers a root-level `AGENTS.md` as always-on context injected at
-conversation start — this kit's `AGENTS.md` needs no changes or pointer file.
-
-- **V0**: repo-specific instructions can additionally live in
-  `.openhands/microagents/repo.md`.
-- **V1**: prefer `.openhands/skills/` for repo-specific skills; `.openhands/microagents/`
-  is still read for backward compatibility.
-- If you want the `SKILLS.md` roles loaded as on-demand context (rather than always
-  injected), convert each role into a microagent/skill file under
-  `.openhands/skills/<role>/` with the appropriate frontmatter trigger.