4.59. Analyst - Query historical data Id 4.59. Description As an Analyst ,   I need to be able to analyse trends in the vertical cabling infrastructure and historical evolutions,   So that I determine the progress and trends of vertical cabling adoption over the years. Priority High Actors Analyst API Calls GET /analyst/sites GET /analyst/blocks GET /analyst/units GET /analyst/equipments GET /analyst/physical-links Linked Processes Status Implemented Preconditions The User must be authenticated and have the Analyst role. Postconditions The System returns the requested data including all versions of the connections stored in the system. Main flow The User triggers the retrieval of vertical cabling data via the APIs (GET). The system returns the data including all the connection versions linked to the retrieved data. Exceptions [400 Bad Request] Invalid input: If mandatory fields are missing or invalid, the system returns an error message. [500 Internal Server Error] System Error If the system fails to save changes due to an internal error, it displays an appropriate message and logs the error for further investigation.