Combine curry paste, chicken, and salt in a food processor; process until smooth. Heat a large skillet over medium-high heat. Add oil to pan; swirl to coat. Add chicken to pan; sauté 6 minutes or until done, stirring to crumble. Remove pan from heat; stir in cucumber and next 3 ingredients (through juice). Place 2 cabbage leaves on each of 4 plates; divide chicken mixture evenly among leaves. Serve with chile paste, if desired.