docs: add stewardship readme

README.md

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+# carding-git-easyCarding
+
+Repository placeholder for curated notes and tools.
+
+## Stewardship Status
+
+- Gitea repository was empty during the 2026-05-20 stewardship pass.
+- README initialized so the repo has a clear landing page.
+- Add only lawful, owned, or properly licensed material.
+- Keep credentials, payment data, private keys, tokens, and personal data out of Git.
+
+## Next Steps
+
+Document the project scope, approved use cases, dependencies, setup flow, and license before uploading code or artifacts.