Advent of Code 2024 - Day 15 - Warehouse Woes

I try to solve Advent of code puzzles during the 2024 event. Please share your solutions and be a part of this great community.
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[@aaronperl]

After I implemented the code for Part A, I ran it and got ... the wrong value. I added a printMap() function to print out the final map, and it matched exactly the final map in the description. Which meant that my score calculation had to be incorrect, somehow. I stared and stared, and stepped through the code, could not figure out how it could possibly be wrong. Then I checked the description again, and discovered that I had copied the expected result incorrectly from the description. So my code actually did work correctly on the first try.
For Part B I was pleased with my function to inflate the map, but I ran out of steam while trying to figure out the movement algorithms.