Spicy Peanut Noodles with Shrimp

1/4 to 1/3 cup water

2 tablespoons low-sodium soy sauce

1 1/2 tablespoons rice vinegar

1 to 2 teaspoons chile paste with garlic

1/2 teaspoon sugar

1/2 teaspoon salt, divided

1 pound medium shrimp, peeled and deveined

Cooking spray

4 cups cooked thick udon noodles or linguine (8 ounces uncooked)

1 red bell pepper, cut into julienne strips

3/4 cup chopped seeded cucumber

1/4 cup diagonally cut green onions

3 tablespoons chopped roasted peanuts

2 tablespoons cilantro leaves

4 lime wedges