- Replaced <object> element with inline SVG to fix contentDocument NULL issues
- Simplified interactive-diagram.js to work with inline SVG directly
- Added diagram_services translations loading from window.i18nTranslations
- Exposed window.i18nTranslations in i18n-simple.js for global access
- Added event listeners for i18nInitialized and languageChanged
- Diagram modals now fully translate across EN/DE/FR languages
- Removed complex retry/race condition logic from SVG loading
- Converted SVG style attributes to presentation attributes (CSP compliant)
Fixes: Interactive diagram was broken due to contentDocument being NULL
when accessing SVG via <object> element. Inline SVG approach is more
reliable and works immediately without race conditions.