chore: import upstream snapshot with attribution

tests/fixtures/deploy_guide.md

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+# Deploy Guide
+
+How to deploy the QuranicWords backend.
+
+## Prerequisites
+
+- Docker installed
+- SSH access to VPS
+
+## Full Deploy
+
+Run this one-liner on your VPS:
+
+```bash
+cd /opt/QuranicWords && git pull origin main && docker compose build --no-cache api
+```
+
+### Database Migration
+
+If you changed the Prisma schema:
+
+```sql
+ALTER TABLE users ADD COLUMN points INT DEFAULT 0;
+```
+
+## Rollback
+
+Use `git revert` to undo bad deploys.
+
+```python
+def rollback(version):
+    subprocess.run(["git", "checkout", version])
+```