Breakfast Banh Mi Sandwich with Eggs and Sausage

Name: Breakfast Banh Mi Sandwich with Eggs and Sausage
Ingredients: 2 teaspoons minced scallion (white part only); 2 teaspoons minced ginger; 1 1/2 teaspoons brown sugar; 1 1/2 teaspoons red-pepper flakes; 1 1/2 teaspoons minced garlic; 1 1/2 teaspoons kosher salt; 3/4 teaspoon freshly ground black pepper; 3/4 teaspoon fresh thyme leaves; 3/4 teaspoon fish sauce; 1 1/4 pounds ground pork; 2 tablespoons vegetable oil, divided; 8 large eggs; 1 baguette, cut into four segments, split on one side, toasted; Mayonnaise, for serving; Sambal or hot sauce, for serving; Kosher salt; Freshly ground black pepper; 1 avocado, pitted and sliced; 1 jalapeño, seeded and julienned, to taste; Cilantro and mint leaves, for serving