feat: implement v0.2.0 release features - agent-first evolution

✅ v0.2 Release Preparation:
- Update version to 0.2.0 in pyproject.toml
- Create release build script for CLI binaries
- Generate comprehensive release notes

✅ OpenClaw DAO Governance:
- Implement complete on-chain voting system
- Create DAO smart contract with Governor framework
- Add comprehensive CLI commands for DAO operations
- Support for multiple proposal types and voting mechanisms

✅ GPU Acceleration CI:
- Complete GPU benchmark CI workflow
- Comprehensive performance testing suite
- Automated benchmark reports and comparison
- GPU optimization monitoring and alerts

✅ Agent SDK Documentation:
- Complete SDK documentation with examples
- Computing agent and oracle agent examples
- Comprehensive API reference and guides
- Security best practices and deployment guides

✅ Production Security Audit:
- Comprehensive security audit framework
- Detailed security assessment (72.5/100 score)
- Critical issues identification and remediation
- Security roadmap and improvement plan

✅ Mobile Wallet & One-Click Miner:
- Complete mobile wallet architecture design
- One-click miner implementation plan
- Cross-platform integration strategy
- Security and user experience considerations

✅ Documentation Updates:
- Add roadmap badge to README
- Update project status and achievements
- Comprehensive feature documentation
- Production readiness indicators

🚀 Ready for v0.2.0 release with agent-first architecture

docs/advanced/01_blockchain/5_validator.md

@@ -0,0 +1,95 @@
+# Validator Operations
+Guide for running a validator node in the AITBC network.
+
+## Becoming a Validator
+
+### Requirements
+
+| Requirement | Value |
+|-------------|-------|
+| Stake | 1000 AITBC |
+| Node uptime | 99%+ |
+| Technical capability | Must run node 24/7 |
+| Geographic distribution | One per region preferred |
+
+### Registration
+
+```bash
+aitbc-chain validator register --stake 1000
+```
+
+### Activate Validator Status
+
+```bash
+aitbc-chain validator activate
+```
+
+## Validator Duties
+
+### Block Production
+
+Validators take turns producing blocks:
+- Round-robin selection
+- Fixed 2-second block time
+- Missed blocks result in reduced rewards
+
+### Transaction Validation
+
+- Verify transaction signatures
+- Check sender balance
+- Validate smart contract execution
+
+### Network Participation
+
+- Maintain P2P connections
+- Propagate blocks to peers
+- Participate in consensus votes
+
+## Validator Rewards
+
+### Block Rewards
+
+| Block Position | Reward |
+|----------------|--------|
+| Proposer | 1 AITBC |
+| Validator (any) | 0.1 AITBC |
+
+### Performance Bonuses
+
+- 100% uptime: 1.5x multiplier
+- 99-100% uptime: 1.2x multiplier
+- <99% uptime: 1.0x multiplier
+
+## Validator Monitoring
+
+```bash
+# Check validator status
+aitbc-chain validator status
+
+# View performance metrics
+aitbc-chain validator metrics
+
+# Check missed blocks
+aitbc-chain validator missed-blocks
+```
+
+## Validator Slashing
+
+### Slashing Conditions
+
+| Violation | Penalty |
+|-----------|---------|
+| Double signing | 5% stake |
+| Extended downtime | 1% stake |
+| Invalid block | 2% stake |
+
+### Recovery
+
+- Partial slashing can be recovered
+- Full slashing requires re-registration
+
+## Next
+
+- [Quick Start](./1_quick-start.md) — Get started
+- [Consensus](./4_consensus.md) — Consensus mechanism
+- [Monitoring](./7_monitoring.md) — Monitoring