Refactor core documentation files to Persian and introduce a deployment handoff guide.
- Translate `AGENT.md`, `CLIENT_DELIVERY.md`, and `README.md` to Persian for better local stakeholder alignment
- Restructure `AGENT.md` with improved technical specifications and versioning
- Update `CLIENT_DELIVERY.md` with localized status legends and requirement tables
- Enhance `README.md` with detailed feature lists and improved formatting
- Add `DEPLOYMENT_HANDOFF.md` to facilitate production deployment processes
