1d3b6b8f0f
- Remove equipmentBox, drawingNoBox, titleBox and related controls
- Add txtFilenameTemplate text box with auto-fill via IDrawingInfoExtractor
- Validate template before export (must contain {item_no})
- Output to Templates/ folder next to source file
- Remove all API client references from MainForm
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>