Time-Travel Data Access and Versioning UI for istSOS Web Administration

The istSOS backend already provides strong support for time-travel queries and versioned data through parameters like as_of and from_to. However, these capabilities are currently only accessible through manual API usage, which makes them difficult to use for most users. This project focuses on bringing these features into the web administration UI by building an intuitive and accessible interface for exploring historical data. Users will be able to select a specific timestamp or time range, view the exact past state of entities such as Things, Sensors, and Datastreams, and understand how data evolved over time without writing API queries. The approach is to design lightweight frontend components that map user input to existing backend parameters, keeping the backend unchanged while making the feature usable. In addition, a Commit History Viewer will be implemented to allow users to browse changes, view metadata like author and timestamp, and load past snapshots directly into the UI. By the end of the project, istSOS will have: - Time selection controls integrated into the UI (instant and range) - Historical views for all major entities - A commit history explorer for tracking data changes - A clean query mapping layer between UI and API - Proper testing and documentation for long-term maintainability Overall, the goal is to make time-travel functionality a first-class feature in istSOS, improving transparency, usability, and accessibility for both technical and non-technical users.