Fix HTML rendering for service descriptions, allow zero price for services, improve image_url handling

backend/models.py

@@ -217,6 +217,23 @@ class Booking(Base):
     service_name = Column(String(255))
     created_at = Column(DateTime(timezone=True), server_default=func.now())
     
+    # Completion fields
+    completed_at = Column(DateTime(timezone=True), nullable=True)
+    diagnosis = Column(Text, nullable=True)  # Initial diagnosis/issue description
+    work_performed = Column(Text, nullable=True)  # What was done to fix it
+    technician_notes = Column(Text, nullable=True)  # Internal technician notes
+    service_cost = Column(Float, nullable=True)  # Final cost if different from base price
+    
+    # Payment fields
+    paid = Column(Boolean, default=False)
+    paid_at = Column(DateTime(timezone=True), nullable=True)
+    
+    # Device information fields
+    device_model = Column(String(255), nullable=True)  # e.g., "Dell Latitude 5520"
+    serial_number = Column(String(255), nullable=True)
+    product_number = Column(String(255), nullable=True)
+    screen_size = Column(String(50), nullable=True)  # e.g., "15-inch", "13-inch"
+    
     service = relationship("Service", back_populates="bookings")
     user = relationship("User", back_populates="bookings")
 
@@ -300,4 +317,35 @@ class CompanyValue(Base):
     display_order = Column(Integer, default=0)
     is_active = Column(Boolean, default=True)
     created_at = Column(DateTime(timezone=True), server_default=func.now())
-    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+
+
+class MediaType(enum.Enum):
+    IMAGE = "image"
+    DOCUMENT = "document"
+    VIDEO = "video"
+    OTHER = "other"
+
+
+class Media(Base):
+    __tablename__ = "media"
+    
+    id = Column(String(36), primary_key=True, default=generate_uuid)
+    filename = Column(String(255), nullable=False)
+    original_filename = Column(String(255), nullable=False)
+    file_path = Column(String(500), nullable=False)
+    file_url = Column(String(500), nullable=False)
+    file_size = Column(Integer, default=0)  # Size in bytes
+    mime_type = Column(String(100))
+    media_type = Column(SQLEnum(MediaType), default=MediaType.IMAGE)
+    alt_text = Column(String(255))
+    title = Column(String(255))
+    description = Column(Text)
+    width = Column(Integer)  # For images
+    height = Column(Integer)  # For images
+    uploaded_by = Column(String(36), ForeignKey("users.id"), nullable=True)
+    is_active = Column(Boolean, default=True)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    
+    uploader = relationship("User", foreign_keys=[uploaded_by])