- Add test_tool_instances_legacy.py with 8 unit tests:
- dockerfile definition type builds from template
- dockerfile build failure raises HTTP 500
- compose definition type renders template
- manifest compiler is NOT called for legacy types
- start_instance legacy/compose/dockerfile types all skip manifest flow
- start_instance manifest type correctly invokes compiler
- Mark T3.2 and T3.3 tasks complete in OpenSpec
- Add openspec/docs/tool-workshop-guide.md with user guide covering
definition types, manifest creation workflow, base definitions,
migration path, and permissions