inital commit, very early alpha stage

backend/README.md

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+# GroupHome Backend
+
+FastAPI, SQLAlchemy, and SQLite backend for the GroupHome coordination platform.
+
+## Commands
+
+```bash
+python -m app.db.seed
+uvicorn app.main:app --reload
+pytest
+```
+
+The seed command resets the local database and prints a demo invite URL plus a demo remote connection code.