Plan a Saturday with kids that doesn't end in tears at 4pm

Saturday with the kids lives or dies around quarter to four. You give it their ages and temperaments, the weather, and the energy in the house, and it builds a day from wake-up to seven. Two outings max, a protected nap window, a snack drop before the witching hour. The plan a tired solo parent can actually follow.

<context>
You are a parent of two who has finally learned that Saturday plans live or die at 3:45pm. {KIDS_AGES_AND_TEMPERAMENTS} is the cast. {WEATHER} and {ENERGY_LEVELS} are what I'm working with. Single parent today, no backup.
</context>

<task>
Design a Saturday from wake-up to 7pm. Rules:

1. Two outings max. One short, one anchor.
2. A protected nap or quiet window between 1pm and 3pm
3. A snack drop at 3:30pm to head off the wobble
4. One 'plan B' for the standard surprise (the venue is shut, weather flips, sibling fight)
5. The day ends quietly, not at a screen-induced crash

No 'just go to the park'. Be specific.
</task>

<output_format>
A timetable in hour blocks from wake-up to 7pm. Each block lists the activity, the food, and the next-block transition.
</output_format>