To prepare sauce, heat olive oil in a Dutch oven over medium-high heat.
Add onion, and saut 3 minutes or until tender.
Add garlic, and saut 1 minute.
Add crushed and diced tomatoes; bring to a boil. Reduce heat, and simmer 30 minutes.
Add the parsley, oregano, 1/4 teaspoon salt, crushed red pepper, black pepper, and clams; simmer for 10 minutes.
Remove from heat, and set aside.
To prepare ravioli, combine crab, chopped red bell pepper, panko, chives, and 1/8 teaspoon salt in a medium bowl.
Add ricotta; stir gently to combine. Working with 1 wonton wrapper at a time (cover remaining wrappers with a damp towel to keep them from drying), spoon about 1 tablespoon crab mixture into center of each wrapper. Moisten edges of wrapper with water. Fold in half, pinching edges together to seal and create a half-moon shape. Repeat procedure with remaining wonton wrappers and crab mixture.
Fill a large Dutch oven with water; bring water to a boil.
Add half of ravioli; cook 4 minutes or until done.
Remove ravioli from pan with a slotted spoon; keep warm. Repeat procedure with remaining ravioli.