Creamy Cucumber Salad

Name: Creamy Cucumber Salad
Ingredients: 1 pound (450g) Persian cucumbers (about 5 cucumbers), ends trimmed, cut into 3- by 5/8-inch spears (see note); 3/4 teaspoon Diamond Crystal kosher salt, divided; for table salt, use half as much by volume; 1 tablespoon (15g) tahini paste; 1 tablespoon (15ml) fresh lemon juice plus 1/4 teaspoon grated zest from 1 lemon, divided; 2 tablespoons (6g) finely chopped fresh dill, plus fronds for garnishing; 1 small garlic clove, finely grated or minced; 1/2 shallot (20g), finely minced