- Add status fields to Receipt model (status, claimed_at, claimed_by)
- Add RECEIPT_CLAIM handling to state_transition.py with validation and reward minting
- Add type field to Transaction model for reliable transaction type storage
- Update router to use TransactionRequest model to preserve type field
- Update poa.py to extract type from mempool transaction content and store only original payload
- Add RECEIPT_CLAIM to GasType enum with gas schedule
- Revert keystore location changes back to /var/lib/aitbc/keystore
- Keep all code references pointing to original location
- Remove /opt/aitbc/keys directory
- Maintain consistency with existing codebase
- Keystore files remain at /var/lib/aitbc/keystore with proper permissions