feat: rebuild preview pages with real API content and full i18n
- preview.php: localized pitch + features for en/no (uk/pl fall back to en)
- Sample outputs now match actual API response format: streaming pipeline
steps, confidence fields, entity counts, corpus slice names, speaker roles
- i18n.php: add 10 preview-specific keys across all 4 languages (en/no/uk/pl)
- Transcribe: shows 3-engine cascade + real speaker roles (saksbehandler/dommer/advokat)
- Timeline: shows date_type, confidence, what_remains_uncertain, next_practical_step
- Redact: shows two-pass pipeline (regex Nordic pack + LLM NER) + contextual tags
- Barnevernet: shows 7-step streaming trace + procedural flag severity levels
- Advocate: shows partisan brief with advocate_role + citation confidence
- Deep Research: shows corpus slices + sub-questions + contradiction-aware synthesis
- Corpus: shows real Qdrant + Azure AI Search config, hybrid search result
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
daveadmin
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