Home-security drone app that tracks a person and saves footage

GOAL: This is my own DJI drone, my own phone, my own alarm system, my own property and my own laptop. MOTION: I want my alarm to launch my drone: when the alarm triggers, my phone gets a push with a "Launch" button. One tap and the drone takes off from its pad in the yard, finds the person running from my house, follows and films them up to my property line, keeps the camera on them from above until they're out of sight, then lands and saves the clip. I'll register the DJI developer account and paste the App Key myself. I'll approve every install and every flight. I authorize you to set up the project on my laptop, build and install the app on my phone, create the Home Assistant automation, and run everything in the DJI simulator. Every change must be reversible. I've attached a photo of the drone's About screen in DJI Fly, told you my phone (iPhone or Android) and my alarm brand. Done means: the alarm triggers a test push, the app passes a full simulated chase in the DJI simulator, and one real test where I set off my own alarm and walk out of my own door, while I watch every step.