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services/interpreter_client.py: sync (requests) client for the LibreTranslate- compatible /v1/translate — no new dep, mirrors the platform clients. translate() maps translatedText[]↔texts (order + length), returns detected_lang + engine_version (aggregate = first item, fine for a per-post [title, description] batch); passthrough items come back unchanged in their slot. InterpreterUnavailable on 503 / connection error (retry later), InterpreterBadRequest on 400. health() checks /v1/health engines.llm. 10 unit tests with mocked HTTP. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CDgx8bQS5YrGRK76v8HUnM