docs: add structured logging implementation plan

- Add comprehensive 25-task implementation roadmap for hierarchical logging
- Align logging structure with three-level architecture (Commands → Steps → Remote Actions)
- Include technical specifications, naming conventions, and acceptance criteria
- Integrate plan into project documentation structure
- Remove deprecated stage fields and workflow field redundancy
- Ready for Phase 1 implementation with command-level span instrumentation

Author: josecelano

README.md

@@ -267,7 +267,8 @@ The repository includes comprehensive GitHub Actions workflows for CI testing:
 
 - **[🤝 Contributing Guide](docs/contributing/README.md)** - Git workflow, commit process, and linting conventions
 - **[📖 Documentation Organization Guide](docs/documentation.md)** - How documentation is organized and where to contribute
-- **[📖 OpenTofu Setup Guide](docs/tech-stack/opentofu.md)** - Installation, common commands, and best practices
+- **[� Structured Logging Implementation Plan](docs/structured-logging-implementation-plan.md)** - Implementation plan for hierarchical logging with tracing spans
+- **[�📖 OpenTofu Setup Guide](docs/tech-stack/opentofu.md)** - Installation, common commands, and best practices
 - **[📖 Ansible Setup Guide](docs/tech-stack/ansible.md)** - Installation, configuration, and project usage
 - **[📖 VM Providers Comparison](docs/vm-providers.md)** - Detailed comparison and decision rationale
 

docs/documentation.md

@@ -108,6 +108,7 @@ docs/
 **Examples**:
 
 - `vm-providers.md` - Comparison of VM providers for this project
+- `structured-logging-implementation-plan.md` - Implementation plan for hierarchical logging with tracing spans
 - Project-specific usage patterns and workflows
 
 ### 📁 Configuration Documentation (`templates/*/README.md`)