FEAT: Integrated Document Engine with WebP optimization, Thumbnail generation and Hybrid (NAS/SSD) storage logic

backend/app/models/document.py

@@ -0,0 +1,26 @@
+from sqlalchemy import Column, String, Integer, Boolean, DateTime, ForeignKey
+from sqlalchemy.dialects.postgresql import UUID
+from sqlalchemy.sql import func
+import uuid
+from app.db.base import Base
+
+class Document(Base):
+    __tablename__ = "documents"
+    __table_args__ = {"schema": "data"}
+
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    parent_type = Column(String(20), nullable=False) # 'organization' vagy 'asset'
+    parent_id = Column(String(50), nullable=False)   # Org vagy Asset technikai ID-ja
+    doc_type = Column(String(50))                    # pl. 'foundation_deed', 'registration'
+    
+    original_name = Column(String(255), nullable=False)
+    file_hash = Column(String(64), nullable=False)   # A NAS-on tárolt név (UUID)
+    file_ext = Column(String(10), default="webp")
+    mime_type = Column(String(100), default="image/webp")
+    file_size = Column(Integer)
+    
+    has_thumbnail = Column(Boolean, default=False)
+    thumbnail_path = Column(String(255)) # SSD-n lévő elérés
+    
+    uploaded_by = Column(Integer, ForeignKey("data.users.id"), nullable=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())