```

chore: remove obsolete files and add Solidity build artifacts to .gitignore

- Add ignore patterns for Solidity build artifacts (typechain-types, artifacts, cache)
- Remove unused exchange mock API server (api/exchange_mock_api.py)
- Remove obsolete client-web README placeholder
- Remove deprecated marketplace-ui HTML implementation
```

docs/developer/integration/skills-framework.md

@@ -0,0 +1,128 @@
+# Cascade Skills Framework
+
+## Overview
+
+The Cascade Skills Framework provides a powerful way to automate complex, multi-step workflows in the AITBC project. Skills bundle together scripts, templates, documentation, and procedures that Cascade can intelligently invoke to execute tasks consistently.
+
+## Skills Directory Structure
+
+```
+.windsurf/skills/
+├── deploy-production/          # Production deployment workflow
+│   ├── SKILL.md               # Skill definition and documentation
+│   ├── pre-deploy-checks.sh   # Pre-deployment validation script
+│   ├── environment-template.env # Production environment template
+│   ├── rollback-steps.md      # Emergency rollback procedures
+│   └── health-check.py        # Post-deployment health verification
+│
+└── blockchain-operations/      # Blockchain node management
+    ├── SKILL.md               # Skill definition and documentation
+    ├── node-health.sh         # Node health monitoring script
+    ├── tx-tracer.py          # Transaction debugging tool
+    ├── mining-optimize.sh    # GPU mining optimization script
+    ├── sync-monitor.py       # Real-time sync monitoring
+    └── network-diag.py       # Network diagnostics tool
+```
+
+## Using Skills
+
+### Automatic Invocation
+Skills are automatically invoked when Cascade detects relevant keywords or context:
+- "deploy production" → triggers deploy-production skill
+- "check node status" → triggers blockchain-operations skill
+- "debug transaction" → triggers blockchain-operations skill
+- "optimize mining" → triggers blockchain-operations skill
+
+### Manual Invocation
+You can manually invoke skills by mentioning them directly:
+- "Use the deploy-production skill"
+- "Run blockchain-operations skill"
+
+## Creating New Skills
+
+1. Create a new directory under `.windsurf/skills/<skill-name>/`
+2. Add a `SKILL.md` file with YAML frontmatter:
+   ```yaml
+   ---
+   name: skill-name
+   description: Brief description of the skill
+   version: 1.0.0
+   author: Cascade
+   tags: [tag1, tag2, tag3]
+   ---
+   ```
+3. Add supporting files (scripts, templates, documentation)
+4. Test the skill functionality
+5. Commit to repository
+
+## Skill Components
+
+### Required
+- **SKILL.md** - Main skill definition with frontmatter
+
+### Optional (but recommended)
+- Shell scripts for automation
+- Python scripts for complex operations
+- Configuration templates
+- Documentation files
+- Test scripts
+
+## Best Practices
+
+1. **Keep skills focused** on a specific domain or workflow
+2. **Include comprehensive documentation** in SKILL.md
+3. **Add error handling** to all scripts
+4. **Use logging** for debugging and audit trails
+5. **Include rollback procedures** for destructive operations
+6. **Test thoroughly** before deploying
+7. **Version your skills** using semantic versioning
+
+## Example Skill: Deploy-Production
+
+The deploy-production skill demonstrates best practices:
+- Comprehensive pre-deployment checks
+- Environment configuration template
+- Detailed rollback procedures
+- Post-deployment health verification
+- Clear documentation and usage examples
+
+## Integration with AITBC
+
+Skills integrate seamlessly with AITBC components:
+- Coordinator API interactions
+- Blockchain node management
+- Mining operations
+- Exchange and marketplace functions
+- Wallet daemon operations
+
+## Recent Success Stories
+
+### Ollama GPU Inference Testing (2026-01-24)
+Using the blockchain-operations skill with Ollama testing enhancements:
+- Executed end-to-end GPU inference workflow testing
+- Fixed coordinator API bug (missing _coerce_float function)
+- Verified complete job lifecycle from submission to receipt generation
+- Documented comprehensive testing scenarios and automation scripts
+- Achieved successful job completion with proper payment calculations
+
+### Service Maintenance (2026-01-21)
+Using the blockchain-operations skill framework:
+- Successfully diagnosed and fixed all failing AITBC services
+- Resolved duplicate service conflicts
+- Implemented SSH access for automated management
+- Restored full functionality to 7 core services
+
+### Production Deployment (2025-01-19)
+Using the deploy-production skill:
+- Automated deployment validation
+- Environment configuration management
+- Health check automation
+- Rollback procedure documentation
+
+## Future Enhancements
+
+- Skill marketplace for sharing community skills
+- Skill dependencies and composition
+- Skill versioning and updates
+- Skill testing framework
+- Skill analytics and usage tracking