cite IEC 61131-3 clause numbers in diagnostics #106
Description
Summary
Include IEC 61131-3 clause/section references in diagnostic messages and a setting to toggle them.
Scope
- Each diagnostic produced by the server includes a
[IEC §X.Y.Z]suffix when the setting is enabled - New setting:
controlforge-st.showIECReferences(boolean, default false) - Applies to existing and future diagnostics where a spec clause is known
Implementation Notes
- Add clause metadata to each diagnostic definition in
src/server/ - Read setting from workspace config in
server.ts - Setting change triggers re-validation
Acceptance
- With setting on, diagnostic messages show IEC clause reference
- With setting off, messages are unchanged
- Clause numbers sourced from
docs/IEC61131_SPECIFICATION.md - Tests cover setting on/off for at least 3 diagnostic types