feat: add Legal Translation tool (translate.php)
New dedicated tool for translating Norwegian legal documents (Barnevernet
letters, court decisions, correspondence) into the user's chosen language
with legal-terminology annotations.
- translate.php: new tool page with source/target language selectors,
4-way UI lang switcher, file upload, doc picker, streaming results
- api/translate.php: NDJSON streaming endpoint; Azure GPT-4o-mini with
legal-aware prompt that preserves Norwegian statute refs verbatim and
annotates terms with no target-language equivalent; 2-credit cost
- assets/js/translate.js: form handler, NDJSON stream reader, copy button
- assets/css/tools.css: .lt-* styles for translation result + annotations
- includes/i18n.php: 22 lt_* keys × 4 languages; translate entry in nav
- includes/FreeTier.php: translate → 2 credits
- includes/CaseResults.php + case-result.php: translate in eligible tools,
toolLabel, toolIcon, deriveTitle, rendering block, rerun map
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
daveadmin
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