This is already supported including the colors. Just add the HSM tile.
HousePanel won't have any influence over the delay to exit your home. You'll have to explore implementing a delayed alarm trigger upon HSM alarming. Several threads are on this forum that discuss how to do this.
Yes, I will add this to the dev queue
This is already supported. When you tap on the HSM tile it cycles through the different modes. You can write a rule tied to a virtual switch that goes straight to night mode and then style it in the editor to look like a HSM night shield.
IP cams are supported as long as you can write a script to pluck out a mp4 file onto your server. Then point one of the 4 video tiles to that file. That file will be updated whenever you click on it or you can set it to update every x seconds using the fast_timer option on the auth page.