1. It's fine for now. You'll get alot more sediment falling out, especially since you used a food processor and squeezed the pulp. In about 2 weeks, it should be starting to drop less lees (sediment) and you can rack (siphon) to a new sanitized vessel at that time.
2. It's fine.
3. Until it's done. It will stop dropping lees, and will clear. You should use a hydrometer to ensure it's actually done, but if it's not dropping any lees at all and it's clear, it's probably done. The problem is with cooking the cider- you would have set the pectins, which may mean that the cider will never clear. It's hard to say.
Broken Leg Brewery
Giving beer a leg to stand on since 2006