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backend/app/models/translation.py

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+"""
+Tool_OCR - Translation Config Model (RESERVED)
+Reserved for future translation feature implementation
+"""
+
+from sqlalchemy import Column, Integer, String, DateTime, ForeignKey, JSON
+from sqlalchemy.orm import relationship
+from datetime import datetime
+
+from app.core.database import Base
+
+
+class TranslationConfig(Base):
+    """
+    Translation configuration (RESERVED for future implementation)
+
+    This table is created but not actively used until translation feature is implemented.
+    """
+
+    __tablename__ = "paddle_ocr_translation_configs"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("paddle_ocr_users.id", ondelete="CASCADE"), nullable=False, index=True)
+
+    source_lang = Column(String(20), nullable=False)  # ch, en, japan, korean, etc.
+    target_lang = Column(String(20), nullable=False)  # en, ch, japan, korean, etc.
+
+    # Translation engine type: "offline" (argostranslate), "ernie", "google", "deepl"
+    engine_type = Column(String(50), nullable=False, default="offline")
+
+    # Engine-specific configuration stored as JSON
+    # For offline (argostranslate): {"model_path": "/path/to/model"}
+    # For API-based: {"api_key": "xxx", "endpoint": "https://..."}
+    engine_config = Column(JSON, nullable=True)
+
+    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)
+
+    # Relationships
+    user = relationship("User", back_populates="translation_configs")
+
+    def __repr__(self):
+        return f"<TranslationConfig(id={self.id}, {self.source_lang}->{self.target_lang}, engine='{self.engine_type}')>"