To prepare the filling, chop the garlic chives and mince the garlic.
To stir-fry the filling, in a pan over high heat, add 1 tablespoon of cooking oil. Once hot, add the ground chicken and stir-fry for about 4 minutes, breaking it apart until fully cooked and lightly browned. Season with oyster sauce and white pepper and stir to coat evenly. Add the minced garlic and chopped garlic chives and stir-fry for about 1 minute until aromatic and softened. Remove from heat and let the filling cool completely before wrapping.
To assemble the rice paper dumplings, place a sheet of rice paper on a working surface. Lightly brush water on both sides until softened. Add about 1 tablespoon of filling near the bottom corner. Fold the bottom corner over the filling, fold in the sides, and roll tightly to seal. Repeat with the remaining rice paper and filling. Lightly dust each dumpling with cornstarch.
To pan-fry the dumplings, in a pan over medium-high heat, add the cooking oil. Once hot, carefully place the rice paper dumplings into the pan in a single layer. Fry for about 2 minutes on each side until golden and crispy. Remove and drain on a wire rack. Repeat with the remaining dumplings.
To make the dipping sauce, in a bowl, whisk together the soy sauce, Chinkiang vinegar, and chili oil. Serve the dumplings immediately with the dipping sauce.