Nice work. I haven't tried using 2D tilemaps or dialogue systems yet. Kind of made me interested to try prototyping a Stardew Valley type game. On many occasions I found myself going back and forth between quadrants when I didn't want to; this was somehow related to the point and click movement and selecting tiles near the edge. Also, the options menu didn't appear to have a 'back' type button, pressing ESC did navigate back but also drops browser games out of full screen.
Even though the gameplay was simplistic, I think you crafted a nice story arc for single playthrough.