[msluszniak]

Description

• New translation task behind one Translator API (useTranslator, translate(text, { sourceLanguage, targetLanguage }, onToken?)).
• Opus-MT: six pairs (en↔de, en↔es, en↔fr), XNNPACK int8 only (fastest on S26 Ultra and iPhone 16; Core ML, MLX and Vulkan were slower).
• EuroLLM-1.7B-Instruct: any pair of its 35 languages with one model (XNNPACK 8da8w, MLX int8 on iOS); switching pairs does not reload it.
• Hy-MT2-1.8B: same API, 38 languages (XNNPACK 8da4w default / 8da8w; MLX int8 default / int4 on iOS). Verified on S26 Ultra and iPhone 16.
• Fix: LLM streaming dropped word breaks for tokenizers whose decoder strips a leading space (EuroLLM).
• NLP demo gets a Translation screen.
• Bumps nativeLibsVersion to 0.10.7 (v0.10.7-libs).

Introduces a breaking change?

• Yes
• No

Type of change

• Bug fix (change which fixes an issue)
• New feature (change which adds functionality)
• Documentation update (improves or adds clarity to existing documentation)
• Other (chores, tests, code style improvements etc.)

Tested on

• iOS
• Android

Testing instructions

• Run apps/nlp, open Translation, pick Opus-MT or EuroLLM and a pair, tap Translate.

Screenshots

Related issues

#1113

Checklist

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have updated the documentation accordingly
• My changes generate no new warnings

Additional notes

Export scripts: export-scripts MR !43.