feat: rewrite architecture.html — Guardian Agents, defence in depth, i18n refresh
- Rewrite architecture.html from 1112 to 481 lines
- Add Guardian Agents section (4-phase verification, philosophical foundations)
- Add defence in depth narrative (3 layers with honest limitations)
- Compress five principles (remove examples, keep descriptions)
- Remove redundant sections (Six Core Services grid, Interactive SVG,
Data Visualizations, Two Implementations, Applied to Training)
- Add Guardian Agents Philosophy paper to research-papers-modal.js
- Retranslate all locales (de, fr, mi) via DeepL with brand preservation
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>