Catalan Fideuà (Spanish Seafood Pasta)

Ingredients

• 3 1/2 cups (28 ounces) fish stock
• 3 tablespoons extra virgin olive oil (divided)
• 14 ounces wheat vermicelli noodles (fideos size 0)
• 12 jumbo shrimp (in the shell, or shelled and deveined)
• 1 onion, finely diced
• 1/2 pound fresh or thawed frozen squid, cleaned and chopped into 1-inch pieces
• 1 red bell pepper, finely diced
• 4 garlic cloves, thinly sliced
• 1 cup canned crushed tomatoes or grated fresh tomato
• 1 teaspoon smoked paprika
• 1 teaspoon kosher salt
• Pinch whole saffron threads
• 1 cup (8 ounces) dry white wine
• 1/2 pound mussels, debearded and scrubbed well
• 3 tablespoons flat-leaf parsley, finely minced
• 1 lemon, sliced into wedges
• Garlic Aioli (optional)