Android TO-DO LIST working on LAN (REACT NATIVE / MS SQL SERVER)

I want to create an Android smartphone application that is a to-do list.
The application will be installed on my smartphone and on my technicians' smartphone.
I, who am the administrator, want to insert a job to be done into the application, for example "the printer in the technical office doesn't work, it needs to be repaired".
I also need to be able to insert if it is an urgent job.
Technicians who have the application, but are not administrators, should see the note and the time it was published.
When each technician opens the note to see it, I have to see at what time they read the note.
When a technician starts the job, he must tick it in the application and the start date and time must be recorded. When the technician has finished the work, he must report it in the application and the finishing date and time must be recorded.
Only the administrator should be able to insert a job, modify it, or delete it.
Technicians can only read the job, and report that they have started it and that they have finished it.
The database that holds the application data will need to be on the company's MS SQL server.
The application must only work on Android smartphones connected to the company's wireless LAN.
No cloud data.
The application will have to be developed with React Native. The backend will be developed with NODE.JS
I attach a first draft of the screens