Windows Display Automation Project

I want a Windows PC connected to a big TV that runs by itself every day. What I need:
• The PC turns on at a set time and shuts down at another automatically.
• On startup, it opens a browser and shows two or three web pages layout at the same time, each in half or one third of the screen.
• Some pages are HTTP or HTTPS and need username/password. It should log in by itself.
• The pages must stay active all day (if one crashes, it comes back).
• I must be able to scroll or make small changes when needed.
• It has to be stable 24/7 and easy for me to change schedules and URLs later.
• I want a simple step-by-step guide and some initial support for tweaks.

Extra requirements
• A panic keyboard shortcut that instantly hides everything and shows our company logo full-screen.
• Ability to pause the system and use the PC normally (PowerPoint, Canva, etc.), then resume the automation with one click/shortcut.

Important: I don’t mind how you build it—please propose your approach and cost.
Also tell me your timeline, deliverables, and how you’ll keep it reliable.
If possible, share a short demo video of something similar you’ve done.